Home / 4,916.20-7,374.30-4,721.80

Finding the Fourth Proportional to 4,916.20, 7,374.30 and 4,721.80

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Solution

The fourth proportional to 4,916.20, 7,374.30 and 4,721.80 is: 7,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.20 : 7,374.30 = 4,721.80 : x
  2. Step 2: Convert to fraction form
    4,916.20/7,374.30 = 4,721.80/x
  3. Step 3: Cross multiply
    4,916.20x = 7,374.30 × 4,721.80
  4. Step 4: Simplify right side
    4,916.20x = 34,819,969.74
  5. Step 5: Solve for x
    x = 34,819,969.74/4,916.20
  6. Step 6: Final answer
    x = 7,082.70

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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.