Home / 2,221.16-3,331.71-577.67

Finding the Fourth Proportional to 2,221.16, 3,331.71 and 577.67

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Solution

The fourth proportional to 2,221.16, 3,331.71 and 577.67 is: 866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.16 : 3,331.71 = 577.67 : x
  2. Step 2: Convert to fraction form
    2,221.16/3,331.71 = 577.67/x
  3. Step 3: Cross multiply
    2,221.16x = 3,331.71 × 577.67
  4. Step 4: Simplify right side
    2,221.16x = 1,924,637.24
  5. Step 5: Solve for x
    x = 1,924,637.24/2,221.16
  6. Step 6: Final answer
    x = 866.50

Related Problems

Find fourth proportional to 1,110.58, 1,665.86 and 288.84
Half scale
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Double scale
Find fourth proportional to 2,222.16, 3,333.21 and 578.67
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.