Home / 5,420.38-7,475.44-3,531.25

Finding the Fourth Proportional to 5,420.38, 7,475.44 and 3,531.25

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Solution

The fourth proportional to 5,420.38, 7,475.44 and 3,531.25 is: 4,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.38 : 7,475.44 = 3,531.25 : x
  2. Step 2: Convert to fraction form
    5,420.38/7,475.44 = 3,531.25/x
  3. Step 3: Cross multiply
    5,420.38x = 7,475.44 × 3,531.25
  4. Step 4: Simplify right side
    5,420.38x = 26,397,647.50
  5. Step 5: Solve for x
    x = 26,397,647.50/5,420.38
  6. Step 6: Final answer
    x = 4,870.07

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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.