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Finding the Fourth Proportional to 1,702.61, 2,553.84 and 470.02

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Solution

The fourth proportional to 1,702.61, 2,553.84 and 470.02 is: 705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.61 : 2,553.84 = 470.02 : x
  2. Step 2: Convert to fraction form
    1,702.61/2,553.84 = 470.02/x
  3. Step 3: Cross multiply
    1,702.61x = 2,553.84 × 470.02
  4. Step 4: Simplify right side
    1,702.61x = 1,200,355.88
  5. Step 5: Solve for x
    x = 1,200,355.88/1,702.61
  6. Step 6: Final answer
    x = 705.01

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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.