Home / 4,319.71-6,478.95-1,398.04

Finding the Fourth Proportional to 4,319.71, 6,478.95 and 1,398.04

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Solution

The fourth proportional to 4,319.71, 6,478.95 and 1,398.04 is: 2,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.71 : 6,478.95 = 1,398.04 : x
  2. Step 2: Convert to fraction form
    4,319.71/6,478.95 = 1,398.04/x
  3. Step 3: Cross multiply
    4,319.71x = 6,478.95 × 1,398.04
  4. Step 4: Simplify right side
    4,319.71x = 9,057,831.26
  5. Step 5: Solve for x
    x = 9,057,831.26/4,319.71
  6. Step 6: Final answer
    x = 2,096.86

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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.