Home / 5,099.30-7,648.96-1,812.39

Finding the Fourth Proportional to 5,099.30, 7,648.96 and 1,812.39

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Solution

The fourth proportional to 5,099.30, 7,648.96 and 1,812.39 is: 2,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.30 : 7,648.96 = 1,812.39 : x
  2. Step 2: Convert to fraction form
    5,099.30/7,648.96 = 1,812.39/x
  3. Step 3: Cross multiply
    5,099.30x = 7,648.96 × 1,812.39
  4. Step 4: Simplify right side
    5,099.30x = 13,862,898.61
  5. Step 5: Solve for x
    x = 13,862,898.61/5,099.30
  6. Step 6: Final answer
    x = 2,718.59

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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.