Home / 5,428.35-8,141.61-1,531.84

Finding the Fourth Proportional to 5,428.35, 8,141.61 and 1,531.84

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Solution

The fourth proportional to 5,428.35, 8,141.61 and 1,531.84 is: 2,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.35 : 8,141.61 = 1,531.84 : x
  2. Step 2: Convert to fraction form
    5,428.35/8,141.61 = 1,531.84/x
  3. Step 3: Cross multiply
    5,428.35x = 8,141.61 × 1,531.84
  4. Step 4: Simplify right side
    5,428.35x = 12,471,643.86
  5. Step 5: Solve for x
    x = 12,471,643.86/5,428.35
  6. Step 6: Final answer
    x = 2,297.50

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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.