Home / 5,552.81-8,331.51-2,431.20

Finding the Fourth Proportional to 5,552.81, 8,331.51 and 2,431.20

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Solution

The fourth proportional to 5,552.81, 8,331.51 and 2,431.20 is: 3,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,552.81 : 8,331.51 = 2,431.20 : x
  2. Step 2: Convert to fraction form
    5,552.81/8,331.51 = 2,431.20/x
  3. Step 3: Cross multiply
    5,552.81x = 8,331.51 × 2,431.20
  4. Step 4: Simplify right side
    5,552.81x = 20,255,567.11
  5. Step 5: Solve for x
    x = 20,255,567.11/5,552.81
  6. Step 6: Final answer
    x = 3,647.81

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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.