Home / 5,281.18-7,289-3,395.12

Finding the Fourth Proportional to 5,281.18, 7,289 and 3,395.12

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Solution

The fourth proportional to 5,281.18, 7,289 and 3,395.12 is: 4,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.18 : 7,289 = 3,395.12 : x
  2. Step 2: Convert to fraction form
    5,281.18/7,289 = 3,395.12/x
  3. Step 3: Cross multiply
    5,281.18x = 7,289 × 3,395.12
  4. Step 4: Simplify right side
    5,281.18x = 24,747,029.68
  5. Step 5: Solve for x
    x = 24,747,029.68/5,281.18
  6. Step 6: Final answer
    x = 4,685.89

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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.