Home / 2,688.48-4,031.06-2,459.30

Finding the Fourth Proportional to 2,688.48, 4,031.06 and 2,459.30

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Solution

The fourth proportional to 2,688.48, 4,031.06 and 2,459.30 is: 3,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.48 : 4,031.06 = 2,459.30 : x
  2. Step 2: Convert to fraction form
    2,688.48/4,031.06 = 2,459.30/x
  3. Step 3: Cross multiply
    2,688.48x = 4,031.06 × 2,459.30
  4. Step 4: Simplify right side
    2,688.48x = 9,913,585.86
  5. Step 5: Solve for x
    x = 9,913,585.86/2,688.48
  6. Step 6: Final answer
    x = 3,687.43

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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.