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Finding the Fourth Proportional to 7,779.01, 10,737.08 and 4,423.79

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Solution

The fourth proportional to 7,779.01, 10,737.08 and 4,423.79 is: 6,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.01 : 10,737.08 = 4,423.79 : x
  2. Step 2: Convert to fraction form
    7,779.01/10,737.08 = 4,423.79/x
  3. Step 3: Cross multiply
    7,779.01x = 10,737.08 × 4,423.79
  4. Step 4: Simplify right side
    7,779.01x = 47,498,587.13
  5. Step 5: Solve for x
    x = 47,498,587.13/7,779.01
  6. Step 6: Final answer
    x = 6,105.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.