Home / 4,957.90-7,428.81-2,617.78

Finding the Fourth Proportional to 4,957.90, 7,428.81 and 2,617.78

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Solution

The fourth proportional to 4,957.90, 7,428.81 and 2,617.78 is: 3,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,957.90 : 7,428.81 = 2,617.78 : x
  2. Step 2: Convert to fraction form
    4,957.90/7,428.81 = 2,617.78/x
  3. Step 3: Cross multiply
    4,957.90x = 7,428.81 × 2,617.78
  4. Step 4: Simplify right side
    4,957.90x = 19,446,990.24
  5. Step 5: Solve for x
    x = 19,446,990.24/4,957.90
  6. Step 6: Final answer
    x = 3,922.42

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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.