Home / 2,220.47-3,330.71-577.01

Finding the Fourth Proportional to 2,220.47, 3,330.71 and 577.01

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Solution

The fourth proportional to 2,220.47, 3,330.71 and 577.01 is: 865.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.47 : 3,330.71 = 577.01 : x
  2. Step 2: Convert to fraction form
    2,220.47/3,330.71 = 577.01/x
  3. Step 3: Cross multiply
    2,220.47x = 3,330.71 × 577.01
  4. Step 4: Simplify right side
    2,220.47x = 1,921,845.09
  5. Step 5: Solve for x
    x = 1,921,845.09/2,220.47
  6. Step 6: Final answer
    x = 865.51

Related Problems

Find fourth proportional to 1,110.24, 1,665.36 and 288.50
Half scale
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Double scale
Find fourth proportional to 2,221.47, 3,332.21 and 578.01
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.