Home / 3,117.28-4,675.88-896.16

Finding the Fourth Proportional to 3,117.28, 4,675.88 and 896.16

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Solution

The fourth proportional to 3,117.28, 4,675.88 and 896.16 is: 1,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.28 : 4,675.88 = 896.16 : x
  2. Step 2: Convert to fraction form
    3,117.28/4,675.88 = 896.16/x
  3. Step 3: Cross multiply
    3,117.28x = 4,675.88 × 896.16
  4. Step 4: Simplify right side
    3,117.28x = 4,190,349.67
  5. Step 5: Solve for x
    x = 4,190,349.67/3,117.28
  6. Step 6: Final answer
    x = 1,344.23

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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.