Home / 5,221.18-7,832.05-1,325.62

Finding the Fourth Proportional to 5,221.18, 7,832.05 and 1,325.62

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Solution

The fourth proportional to 5,221.18, 7,832.05 and 1,325.62 is: 1,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.18 : 7,832.05 = 1,325.62 : x
  2. Step 2: Convert to fraction form
    5,221.18/7,832.05 = 1,325.62/x
  3. Step 3: Cross multiply
    5,221.18x = 7,832.05 × 1,325.62
  4. Step 4: Simplify right side
    5,221.18x = 10,382,315.49
  5. Step 5: Solve for x
    x = 10,382,315.49/5,221.18
  6. Step 6: Final answer
    x = 1,988.50

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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.