Home / 1,537.16-2,123.38-1,192.20

Finding the Fourth Proportional to 1,537.16, 2,123.38 and 1,192.20

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Solution

The fourth proportional to 1,537.16, 2,123.38 and 1,192.20 is: 1,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.16 : 2,123.38 = 1,192.20 : x
  2. Step 2: Convert to fraction form
    1,537.16/2,123.38 = 1,192.20/x
  3. Step 3: Cross multiply
    1,537.16x = 2,123.38 × 1,192.20
  4. Step 4: Simplify right side
    1,537.16x = 2,531,493.64
  5. Step 5: Solve for x
    x = 2,531,493.64/1,537.16
  6. Step 6: Final answer
    x = 1,646.86

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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.