Home / 1,475.53-2,038.30-1,397.77

Finding the Fourth Proportional to 1,475.53, 2,038.30 and 1,397.77

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Solution

The fourth proportional to 1,475.53, 2,038.30 and 1,397.77 is: 1,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.53 : 2,038.30 = 1,397.77 : x
  2. Step 2: Convert to fraction form
    1,475.53/2,038.30 = 1,397.77/x
  3. Step 3: Cross multiply
    1,475.53x = 2,038.30 × 1,397.77
  4. Step 4: Simplify right side
    1,475.53x = 2,849,064.40
  5. Step 5: Solve for x
    x = 2,849,064.40/1,475.53
  6. Step 6: Final answer
    x = 1,930.88

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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.