Home / 1,545.23-2,132.57-882.18

Finding the Fourth Proportional to 1,545.23, 2,132.57 and 882.18

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Solution

The fourth proportional to 1,545.23, 2,132.57 and 882.18 is: 1,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.23 : 2,132.57 = 882.18 : x
  2. Step 2: Convert to fraction form
    1,545.23/2,132.57 = 882.18/x
  3. Step 3: Cross multiply
    1,545.23x = 2,132.57 × 882.18
  4. Step 4: Simplify right side
    1,545.23x = 1,881,310.60
  5. Step 5: Solve for x
    x = 1,881,310.60/1,545.23
  6. Step 6: Final answer
    x = 1,217.50

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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.