Home / 5,117.70-7,062.84-2,880.06

Finding the Fourth Proportional to 5,117.70, 7,062.84 and 2,880.06

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Solution

The fourth proportional to 5,117.70, 7,062.84 and 2,880.06 is: 3,974.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.70 : 7,062.84 = 2,880.06 : x
  2. Step 2: Convert to fraction form
    5,117.70/7,062.84 = 2,880.06/x
  3. Step 3: Cross multiply
    5,117.70x = 7,062.84 × 2,880.06
  4. Step 4: Simplify right side
    5,117.70x = 20,341,402.97
  5. Step 5: Solve for x
    x = 20,341,402.97/5,117.70
  6. Step 6: Final answer
    x = 3,974.72

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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.