Home / 1,461.24-2,192.10-487.64

Finding the Fourth Proportional to 1,461.24, 2,192.10 and 487.64

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Solution

The fourth proportional to 1,461.24, 2,192.10 and 487.64 is: 731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.24 : 2,192.10 = 487.64 : x
  2. Step 2: Convert to fraction form
    1,461.24/2,192.10 = 487.64/x
  3. Step 3: Cross multiply
    1,461.24x = 2,192.10 × 487.64
  4. Step 4: Simplify right side
    1,461.24x = 1,068,955.64
  5. Step 5: Solve for x
    x = 1,068,955.64/1,461.24
  6. Step 6: Final answer
    x = 731.54

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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.