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Finding the Fourth Proportional to 2,594.97, 3,892.41 and 647.15

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Solution

The fourth proportional to 2,594.97, 3,892.41 and 647.15 is: 970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,594.97 : 3,892.41 = 647.15 : x
  2. Step 2: Convert to fraction form
    2,594.97/3,892.41 = 647.15/x
  3. Step 3: Cross multiply
    2,594.97x = 3,892.41 × 647.15
  4. Step 4: Simplify right side
    2,594.97x = 2,518,953.67
  5. Step 5: Solve for x
    x = 2,518,953.67/2,594.97
  6. Step 6: Final answer
    x = 970.71

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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.