Home / 5,421.08-7,480.14-3,325.88

Finding the Fourth Proportional to 5,421.08, 7,480.14 and 3,325.88

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Solution

The fourth proportional to 5,421.08, 7,480.14 and 3,325.88 is: 4,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.08 : 7,480.14 = 3,325.88 : x
  2. Step 2: Convert to fraction form
    5,421.08/7,480.14 = 3,325.88/x
  3. Step 3: Cross multiply
    5,421.08x = 7,480.14 × 3,325.88
  4. Step 4: Simplify right side
    5,421.08x = 24,878,048.02
  5. Step 5: Solve for x
    x = 24,878,048.02/5,421.08
  6. Step 6: Final answer
    x = 4,589.13

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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.