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Finding the Fourth Proportional to 1,140.12, 1,710.72 and 592.01

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Solution

The fourth proportional to 1,140.12, 1,710.72 and 592.01 is: 888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.12 : 1,710.72 = 592.01 : x
  2. Step 2: Convert to fraction form
    1,140.12/1,710.72 = 592.01/x
  3. Step 3: Cross multiply
    1,140.12x = 1,710.72 × 592.01
  4. Step 4: Simplify right side
    1,140.12x = 1,012,763.35
  5. Step 5: Solve for x
    x = 1,012,763.35/1,140.12
  6. Step 6: Final answer
    x = 888.30

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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.