Home / 2,220.06-3,062.70-1,556.67

Finding the Fourth Proportional to 2,220.06, 3,062.70 and 1,556.67

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Solution

The fourth proportional to 2,220.06, 3,062.70 and 1,556.67 is: 2,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.06 : 3,062.70 = 1,556.67 : x
  2. Step 2: Convert to fraction form
    2,220.06/3,062.70 = 1,556.67/x
  3. Step 3: Cross multiply
    2,220.06x = 3,062.70 × 1,556.67
  4. Step 4: Simplify right side
    2,220.06x = 4,767,613.21
  5. Step 5: Solve for x
    x = 4,767,613.21/2,220.06
  6. Step 6: Final answer
    x = 2,147.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.