Home / 7,962.78-10,988.85-4,377.89

Finding the Fourth Proportional to 7,962.78, 10,988.85 and 4,377.89

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Solution

The fourth proportional to 7,962.78, 10,988.85 and 4,377.89 is: 6,041.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.78 : 10,988.85 = 4,377.89 : x
  2. Step 2: Convert to fraction form
    7,962.78/10,988.85 = 4,377.89/x
  3. Step 3: Cross multiply
    7,962.78x = 10,988.85 × 4,377.89
  4. Step 4: Simplify right side
    7,962.78x = 48,107,976.53
  5. Step 5: Solve for x
    x = 48,107,976.53/7,962.78
  6. Step 6: Final answer
    x = 6,041.61

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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.