Home / 4,747.38-7,122.71-2,116.74

Finding the Fourth Proportional to 4,747.38, 7,122.71 and 2,116.74

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Solution

The fourth proportional to 4,747.38, 7,122.71 and 2,116.74 is: 3,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.38 : 7,122.71 = 2,116.74 : x
  2. Step 2: Convert to fraction form
    4,747.38/7,122.71 = 2,116.74/x
  3. Step 3: Cross multiply
    4,747.38x = 7,122.71 × 2,116.74
  4. Step 4: Simplify right side
    4,747.38x = 15,076,925.17
  5. Step 5: Solve for x
    x = 15,076,925.17/4,747.38
  6. Step 6: Final answer
    x = 3,175.84

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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.