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Finding the Fourth Proportional to 3,038.61, 4,557.91 and 730.11

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Solution

The fourth proportional to 3,038.61, 4,557.91 and 730.11 is: 1,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.61 : 4,557.91 = 730.11 : x
  2. Step 2: Convert to fraction form
    3,038.61/4,557.91 = 730.11/x
  3. Step 3: Cross multiply
    3,038.61x = 4,557.91 × 730.11
  4. Step 4: Simplify right side
    3,038.61x = 3,327,764.75
  5. Step 5: Solve for x
    x = 3,327,764.75/3,038.61
  6. Step 6: Final answer
    x = 1,095.16

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Similar ratio
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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.