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Finding the Fourth Proportional to 1,737.73, 2,606.61 and 642.08

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Solution

The fourth proportional to 1,737.73, 2,606.61 and 642.08 is: 963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.73 : 2,606.61 = 642.08 : x
  2. Step 2: Convert to fraction form
    1,737.73/2,606.61 = 642.08/x
  3. Step 3: Cross multiply
    1,737.73x = 2,606.61 × 642.08
  4. Step 4: Simplify right side
    1,737.73x = 1,673,658.67
  5. Step 5: Solve for x
    x = 1,673,658.67/1,737.73
  6. Step 6: Final answer
    x = 963.13

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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.