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Finding the Fourth Proportional to 4,713.18, 7,068.85 and 4,478.99

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Solution

The fourth proportional to 4,713.18, 7,068.85 and 4,478.99 is: 6,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,713.18 : 7,068.85 = 4,478.99 : x
  2. Step 2: Convert to fraction form
    4,713.18/7,068.85 = 4,478.99/x
  3. Step 3: Cross multiply
    4,713.18x = 7,068.85 × 4,478.99
  4. Step 4: Simplify right side
    4,713.18x = 31,661,261.92
  5. Step 5: Solve for x
    x = 31,661,261.92/4,713.18
  6. Step 6: Final answer
    x = 6,717.60

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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.