Home / 3,253.40-4,489.68-1,856.15

Finding the Fourth Proportional to 3,253.40, 4,489.68 and 1,856.15

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Solution

The fourth proportional to 3,253.40, 4,489.68 and 1,856.15 is: 2,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.40 : 4,489.68 = 1,856.15 : x
  2. Step 2: Convert to fraction form
    3,253.40/4,489.68 = 1,856.15/x
  3. Step 3: Cross multiply
    3,253.40x = 4,489.68 × 1,856.15
  4. Step 4: Simplify right side
    3,253.40x = 8,333,497.08
  5. Step 5: Solve for x
    x = 8,333,497.08/3,253.40
  6. Step 6: Final answer
    x = 2,561.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.