Home / 1,545.22-2,132.38-882.05

Finding the Fourth Proportional to 1,545.22, 2,132.38 and 882.05

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Solution

The fourth proportional to 1,545.22, 2,132.38 and 882.05 is: 1,217.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.22 : 2,132.38 = 882.05 : x
  2. Step 2: Convert to fraction form
    1,545.22/2,132.38 = 882.05/x
  3. Step 3: Cross multiply
    1,545.22x = 2,132.38 × 882.05
  4. Step 4: Simplify right side
    1,545.22x = 1,880,865.78
  5. Step 5: Solve for x
    x = 1,880,865.78/1,545.22
  6. Step 6: Final answer
    x = 1,217.22

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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.