Home / 3,639.49-5,023.10-2,147.77

Finding the Fourth Proportional to 3,639.49, 5,023.10 and 2,147.77

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Solution

The fourth proportional to 3,639.49, 5,023.10 and 2,147.77 is: 2,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.49 : 5,023.10 = 2,147.77 : x
  2. Step 2: Convert to fraction form
    3,639.49/5,023.10 = 2,147.77/x
  3. Step 3: Cross multiply
    3,639.49x = 5,023.10 × 2,147.77
  4. Step 4: Simplify right side
    3,639.49x = 10,788,463.49
  5. Step 5: Solve for x
    x = 10,788,463.49/3,639.49
  6. Step 6: Final answer
    x = 2,964.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.