Home / 1,573.72-2,166.78-1,337.20

Finding the Fourth Proportional to 1,573.72, 2,166.78 and 1,337.20

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Solution

The fourth proportional to 1,573.72, 2,166.78 and 1,337.20 is: 1,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.72 : 2,166.78 = 1,337.20 : x
  2. Step 2: Convert to fraction form
    1,573.72/2,166.78 = 1,337.20/x
  3. Step 3: Cross multiply
    1,573.72x = 2,166.78 × 1,337.20
  4. Step 4: Simplify right side
    1,573.72x = 2,897,418.22
  5. Step 5: Solve for x
    x = 2,897,418.22/1,573.72
  6. Step 6: Final answer
    x = 1,841.13

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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.