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Finding the Fourth Proportional to 4,641.59, 6,960.95 and 1,520.91

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Solution

The fourth proportional to 4,641.59, 6,960.95 and 1,520.91 is: 2,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.59 : 6,960.95 = 1,520.91 : x
  2. Step 2: Convert to fraction form
    4,641.59/6,960.95 = 1,520.91/x
  3. Step 3: Cross multiply
    4,641.59x = 6,960.95 × 1,520.91
  4. Step 4: Simplify right side
    4,641.59x = 10,586,970.86
  5. Step 5: Solve for x
    x = 10,586,970.86/4,641.59
  6. Step 6: Final answer
    x = 2,280.89

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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.