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Finding the Fourth Proportional to 2,387.61, 3,583.04 and 926.57

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Solution

The fourth proportional to 2,387.61, 3,583.04 and 926.57 is: 1,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.61 : 3,583.04 = 926.57 : x
  2. Step 2: Convert to fraction form
    2,387.61/3,583.04 = 926.57/x
  3. Step 3: Cross multiply
    2,387.61x = 3,583.04 × 926.57
  4. Step 4: Simplify right side
    2,387.61x = 3,319,941.70
  5. Step 5: Solve for x
    x = 3,319,941.70/2,387.61
  6. Step 6: Final answer
    x = 1,390.49

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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.