Home / 5,400.15-7,449.36-3,718.64

Finding the Fourth Proportional to 5,400.15, 7,449.36 and 3,718.64

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Solution

The fourth proportional to 5,400.15, 7,449.36 and 3,718.64 is: 5,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.15 : 7,449.36 = 3,718.64 : x
  2. Step 2: Convert to fraction form
    5,400.15/7,449.36 = 3,718.64/x
  3. Step 3: Cross multiply
    5,400.15x = 7,449.36 × 3,718.64
  4. Step 4: Simplify right side
    5,400.15x = 27,701,432.23
  5. Step 5: Solve for x
    x = 27,701,432.23/5,400.15
  6. Step 6: Final answer
    x = 5,129.76

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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.