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Finding the Fourth Proportional to 2,384.86, 3,577.30 and 653.48

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Solution

The fourth proportional to 2,384.86, 3,577.30 and 653.48 is: 980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.86 : 3,577.30 = 653.48 : x
  2. Step 2: Convert to fraction form
    2,384.86/3,577.30 = 653.48/x
  3. Step 3: Cross multiply
    2,384.86x = 3,577.30 × 653.48
  4. Step 4: Simplify right side
    2,384.86x = 2,337,694.00
  5. Step 5: Solve for x
    x = 2,337,694.00/2,384.86
  6. Step 6: Final answer
    x = 980.22

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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.