Home / 3,314.79-4,572.88-2,119.47

Finding the Fourth Proportional to 3,314.79, 4,572.88 and 2,119.47

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Solution

The fourth proportional to 3,314.79, 4,572.88 and 2,119.47 is: 2,923.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.79 : 4,572.88 = 2,119.47 : x
  2. Step 2: Convert to fraction form
    3,314.79/4,572.88 = 2,119.47/x
  3. Step 3: Cross multiply
    3,314.79x = 4,572.88 × 2,119.47
  4. Step 4: Simplify right side
    3,314.79x = 9,692,059.53
  5. Step 5: Solve for x
    x = 9,692,059.53/3,314.79
  6. Step 6: Final answer
    x = 2,923.88

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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.