Home / 5,390.76-7,439.99-3,267.15

Finding the Fourth Proportional to 5,390.76, 7,439.99 and 3,267.15

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Solution

The fourth proportional to 5,390.76, 7,439.99 and 3,267.15 is: 4,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.76 : 7,439.99 = 3,267.15 : x
  2. Step 2: Convert to fraction form
    5,390.76/7,439.99 = 3,267.15/x
  3. Step 3: Cross multiply
    5,390.76x = 7,439.99 × 3,267.15
  4. Step 4: Simplify right side
    5,390.76x = 24,307,563.33
  5. Step 5: Solve for x
    x = 24,307,563.33/5,390.76
  6. Step 6: Final answer
    x = 4,509.12

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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.