Home / 3,545.39-5,316.45-1,079.66

Finding the Fourth Proportional to 3,545.39, 5,316.45 and 1,079.66

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Solution

The fourth proportional to 3,545.39, 5,316.45 and 1,079.66 is: 1,618.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.39 : 5,316.45 = 1,079.66 : x
  2. Step 2: Convert to fraction form
    3,545.39/5,316.45 = 1,079.66/x
  3. Step 3: Cross multiply
    3,545.39x = 5,316.45 × 1,079.66
  4. Step 4: Simplify right side
    3,545.39x = 5,739,958.41
  5. Step 5: Solve for x
    x = 5,739,958.41/3,545.39
  6. Step 6: Final answer
    x = 1,618.99

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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.