Home / 5,415.61-7,474.29-3,291.18

Finding the Fourth Proportional to 5,415.61, 7,474.29 and 3,291.18

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Solution

The fourth proportional to 5,415.61, 7,474.29 and 3,291.18 is: 4,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.61 : 7,474.29 = 3,291.18 : x
  2. Step 2: Convert to fraction form
    5,415.61/7,474.29 = 3,291.18/x
  3. Step 3: Cross multiply
    5,415.61x = 7,474.29 × 3,291.18
  4. Step 4: Simplify right side
    5,415.61x = 24,599,233.76
  5. Step 5: Solve for x
    x = 24,599,233.76/5,415.61
  6. Step 6: Final answer
    x = 4,542.28

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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.