Home / 6,639.84-9,152.91-5,458.86

Finding the Fourth Proportional to 6,639.84, 9,152.91 and 5,458.86

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Solution

The fourth proportional to 6,639.84, 9,152.91 and 5,458.86 is: 7,524.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.84 : 9,152.91 = 5,458.86 : x
  2. Step 2: Convert to fraction form
    6,639.84/9,152.91 = 5,458.86/x
  3. Step 3: Cross multiply
    6,639.84x = 9,152.91 × 5,458.86
  4. Step 4: Simplify right side
    6,639.84x = 49,964,454.28
  5. Step 5: Solve for x
    x = 49,964,454.28/6,639.84
  6. Step 6: Final answer
    x = 7,524.95

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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.