Home / 4,687.77-7,031.10-1,225.29

Finding the Fourth Proportional to 4,687.77, 7,031.10 and 1,225.29

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Solution

The fourth proportional to 4,687.77, 7,031.10 and 1,225.29 is: 1,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.77 : 7,031.10 = 1,225.29 : x
  2. Step 2: Convert to fraction form
    4,687.77/7,031.10 = 1,225.29/x
  3. Step 3: Cross multiply
    4,687.77x = 7,031.10 × 1,225.29
  4. Step 4: Simplify right side
    4,687.77x = 8,615,136.52
  5. Step 5: Solve for x
    x = 8,615,136.52/4,687.77
  6. Step 6: Final answer
    x = 1,837.79

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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.