Home / 1,545.15-2,132.27-881.99

Finding the Fourth Proportional to 1,545.15, 2,132.27 and 881.99

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Solution

The fourth proportional to 1,545.15, 2,132.27 and 881.99 is: 1,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.15 : 2,132.27 = 881.99 : x
  2. Step 2: Convert to fraction form
    1,545.15/2,132.27 = 881.99/x
  3. Step 3: Cross multiply
    1,545.15x = 2,132.27 × 881.99
  4. Step 4: Simplify right side
    1,545.15x = 1,880,632.36
  5. Step 5: Solve for x
    x = 1,880,632.36/1,545.15
  6. Step 6: Final answer
    x = 1,217.12

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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.