Home / 3,117.28-4,307.32-2,492.96

Finding the Fourth Proportional to 3,117.28, 4,307.32 and 2,492.96

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Solution

The fourth proportional to 3,117.28, 4,307.32 and 2,492.96 is: 3,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.28 : 4,307.32 = 2,492.96 : x
  2. Step 2: Convert to fraction form
    3,117.28/4,307.32 = 2,492.96/x
  3. Step 3: Cross multiply
    3,117.28x = 4,307.32 × 2,492.96
  4. Step 4: Simplify right side
    3,117.28x = 10,737,976.47
  5. Step 5: Solve for x
    x = 10,737,976.47/3,117.28
  6. Step 6: Final answer
    x = 3,444.66

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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.