Home / 5,393.72-7,439.94-3,402.60

Finding the Fourth Proportional to 5,393.72, 7,439.94 and 3,402.60

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Solution

The fourth proportional to 5,393.72, 7,439.94 and 3,402.60 is: 4,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.72 : 7,439.94 = 3,402.60 : x
  2. Step 2: Convert to fraction form
    5,393.72/7,439.94 = 3,402.60/x
  3. Step 3: Cross multiply
    5,393.72x = 7,439.94 × 3,402.60
  4. Step 4: Simplify right side
    5,393.72x = 25,315,139.84
  5. Step 5: Solve for x
    x = 25,315,139.84/5,393.72
  6. Step 6: Final answer
    x = 4,693.45

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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.