Home / 2,459.42-3,689.73-2,187.56

Finding the Fourth Proportional to 2,459.42, 3,689.73 and 2,187.56

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Solution

The fourth proportional to 2,459.42, 3,689.73 and 2,187.56 is: 3,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.42 : 3,689.73 = 2,187.56 : x
  2. Step 2: Convert to fraction form
    2,459.42/3,689.73 = 2,187.56/x
  3. Step 3: Cross multiply
    2,459.42x = 3,689.73 × 2,187.56
  4. Step 4: Simplify right side
    2,459.42x = 8,071,505.76
  5. Step 5: Solve for x
    x = 8,071,505.76/2,459.42
  6. Step 6: Final answer
    x = 3,281.87

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1.5x scale

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.