Home / 2,459.26-3,687.45-1,688.86

Finding the Fourth Proportional to 2,459.26, 3,687.45 and 1,688.86

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Solution

The fourth proportional to 2,459.26, 3,687.45 and 1,688.86 is: 2,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.26 : 3,687.45 = 1,688.86 : x
  2. Step 2: Convert to fraction form
    2,459.26/3,687.45 = 1,688.86/x
  3. Step 3: Cross multiply
    2,459.26x = 3,687.45 × 1,688.86
  4. Step 4: Simplify right side
    2,459.26x = 6,227,586.81
  5. Step 5: Solve for x
    x = 6,227,586.81/2,459.26
  6. Step 6: Final answer
    x = 2,532.30

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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.