Home / 5,378.01-7,422.25-3,140.44

Finding the Fourth Proportional to 5,378.01, 7,422.25 and 3,140.44

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Solution

The fourth proportional to 5,378.01, 7,422.25 and 3,140.44 is: 4,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.01 : 7,422.25 = 3,140.44 : x
  2. Step 2: Convert to fraction form
    5,378.01/7,422.25 = 3,140.44/x
  3. Step 3: Cross multiply
    5,378.01x = 7,422.25 × 3,140.44
  4. Step 4: Simplify right side
    5,378.01x = 23,309,130.79
  5. Step 5: Solve for x
    x = 23,309,130.79/5,378.01
  6. Step 6: Final answer
    x = 4,334.16

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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.