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Finding the Fourth Proportional to 1,789.62, 2,684.88 and 557.04

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Solution

The fourth proportional to 1,789.62, 2,684.88 and 557.04 is: 835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.62 : 2,684.88 = 557.04 : x
  2. Step 2: Convert to fraction form
    1,789.62/2,684.88 = 557.04/x
  3. Step 3: Cross multiply
    1,789.62x = 2,684.88 × 557.04
  4. Step 4: Simplify right side
    1,789.62x = 1,495,585.56
  5. Step 5: Solve for x
    x = 1,495,585.56/1,789.62
  6. Step 6: Final answer
    x = 835.70

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1.5x scale

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.