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Finding the Fourth Proportional to 1,140.84, 1,710.60 and 1,004.16

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Solution

The fourth proportional to 1,140.84, 1,710.60 and 1,004.16 is: 1,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.84 : 1,710.60 = 1,004.16 : x
  2. Step 2: Convert to fraction form
    1,140.84/1,710.60 = 1,004.16/x
  3. Step 3: Cross multiply
    1,140.84x = 1,710.60 × 1,004.16
  4. Step 4: Simplify right side
    1,140.84x = 1,717,716.10
  5. Step 5: Solve for x
    x = 1,717,716.10/1,140.84
  6. Step 6: Final answer
    x = 1,505.66

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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.