Home / 1,545.53-2,131.04-1,048.49

Finding the Fourth Proportional to 1,545.53, 2,131.04 and 1,048.49

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Solution

The fourth proportional to 1,545.53, 2,131.04 and 1,048.49 is: 1,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.53 : 2,131.04 = 1,048.49 : x
  2. Step 2: Convert to fraction form
    1,545.53/2,131.04 = 1,048.49/x
  3. Step 3: Cross multiply
    1,545.53x = 2,131.04 × 1,048.49
  4. Step 4: Simplify right side
    1,545.53x = 2,234,358.23
  5. Step 5: Solve for x
    x = 2,234,358.23/1,545.53
  6. Step 6: Final answer
    x = 1,445.70

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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.