Home / 5,481.81-7,565.39-3,124.71

Finding the Fourth Proportional to 5,481.81, 7,565.39 and 3,124.71

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Solution

The fourth proportional to 5,481.81, 7,565.39 and 3,124.71 is: 4,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.81 : 7,565.39 = 3,124.71 : x
  2. Step 2: Convert to fraction form
    5,481.81/7,565.39 = 3,124.71/x
  3. Step 3: Cross multiply
    5,481.81x = 7,565.39 × 3,124.71
  4. Step 4: Simplify right side
    5,481.81x = 23,639,649.79
  5. Step 5: Solve for x
    x = 23,639,649.79/5,481.81
  6. Step 6: Final answer
    x = 4,312.38

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Half scale
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Double scale
Find fourth proportional to 5,482.81, 7,566.77 and 3,125.71
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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.