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Finding the Fourth Proportional to 1,681.64, 2,535.92 and 1,658.57

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Solution

The fourth proportional to 1,681.64, 2,535.92 and 1,658.57 is: 2,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.64 : 2,535.92 = 1,658.57 : x
  2. Step 2: Convert to fraction form
    1,681.64/2,535.92 = 1,658.57/x
  3. Step 3: Cross multiply
    1,681.64x = 2,535.92 × 1,658.57
  4. Step 4: Simplify right side
    1,681.64x = 4,205,979.86
  5. Step 5: Solve for x
    x = 4,205,979.86/1,681.64
  6. Step 6: Final answer
    x = 2,501.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.