Home / 5,267.20-7,246.38-5,121.40

Finding the Fourth Proportional to 5,267.20, 7,246.38 and 5,121.40

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Solution

The fourth proportional to 5,267.20, 7,246.38 and 5,121.40 is: 7,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.20 : 7,246.38 = 5,121.40 : x
  2. Step 2: Convert to fraction form
    5,267.20/7,246.38 = 5,121.40/x
  3. Step 3: Cross multiply
    5,267.20x = 7,246.38 × 5,121.40
  4. Step 4: Simplify right side
    5,267.20x = 37,111,610.53
  5. Step 5: Solve for x
    x = 37,111,610.53/5,267.20
  6. Step 6: Final answer
    x = 7,045.79

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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.