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Finding the Fourth Proportional to 1,860.16, 2,785.32 and 1,537

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Solution

The fourth proportional to 1,860.16, 2,785.32 and 1,537 is: 2,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.16 : 2,785.32 = 1,537 : x
  2. Step 2: Convert to fraction form
    1,860.16/2,785.32 = 1,537/x
  3. Step 3: Cross multiply
    1,860.16x = 2,785.32 × 1,537
  4. Step 4: Simplify right side
    1,860.16x = 4,281,036.84
  5. Step 5: Solve for x
    x = 4,281,036.84/1,860.16
  6. Step 6: Final answer
    x = 2,301.43

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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.