Home / 4,721.90-7,082.84-1,946.63

Finding the Fourth Proportional to 4,721.90, 7,082.84 and 1,946.63

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Solution

The fourth proportional to 4,721.90, 7,082.84 and 1,946.63 is: 2,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.90 : 7,082.84 = 1,946.63 : x
  2. Step 2: Convert to fraction form
    4,721.90/7,082.84 = 1,946.63/x
  3. Step 3: Cross multiply
    4,721.90x = 7,082.84 × 1,946.63
  4. Step 4: Simplify right side
    4,721.90x = 13,787,691.40
  5. Step 5: Solve for x
    x = 13,787,691.40/4,721.90
  6. Step 6: Final answer
    x = 2,919.95

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Similar ratio
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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.