Home / 5,318.28-7,987.95-3,214.17

Finding the Fourth Proportional to 5,318.28, 7,987.95 and 3,214.17

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Solution

The fourth proportional to 5,318.28, 7,987.95 and 3,214.17 is: 4,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.28 : 7,987.95 = 3,214.17 : x
  2. Step 2: Convert to fraction form
    5,318.28/7,987.95 = 3,214.17/x
  3. Step 3: Cross multiply
    5,318.28x = 7,987.95 × 3,214.17
  4. Step 4: Simplify right side
    5,318.28x = 25,674,629.25
  5. Step 5: Solve for x
    x = 25,674,629.25/5,318.28
  6. Step 6: Final answer
    x = 4,827.62

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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.