Home / 4,319.15-6,479.78-1,397.48

Finding the Fourth Proportional to 4,319.15, 6,479.78 and 1,397.48

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Solution

The fourth proportional to 4,319.15, 6,479.78 and 1,397.48 is: 2,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.15 : 6,479.78 = 1,397.48 : x
  2. Step 2: Convert to fraction form
    4,319.15/6,479.78 = 1,397.48/x
  3. Step 3: Cross multiply
    4,319.15x = 6,479.78 × 1,397.48
  4. Step 4: Simplify right side
    4,319.15x = 9,055,323.57
  5. Step 5: Solve for x
    x = 9,055,323.57/4,319.15
  6. Step 6: Final answer
    x = 2,096.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.