Home / 7,780.52-10,737.54-4,990.76

Finding the Fourth Proportional to 7,780.52, 10,737.54 and 4,990.76

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Solution

The fourth proportional to 7,780.52, 10,737.54 and 4,990.76 is: 6,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.52 : 10,737.54 = 4,990.76 : x
  2. Step 2: Convert to fraction form
    7,780.52/10,737.54 = 4,990.76/x
  3. Step 3: Cross multiply
    7,780.52x = 10,737.54 × 4,990.76
  4. Step 4: Simplify right side
    7,780.52x = 53,588,485.13
  5. Step 5: Solve for x
    x = 53,588,485.13/7,780.52
  6. Step 6: Final answer
    x = 6,887.52

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Half scale
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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.