Home / 5,275.10-7,278.18-3,680.03

Finding the Fourth Proportional to 5,275.10, 7,278.18 and 3,680.03

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Solution

The fourth proportional to 5,275.10, 7,278.18 and 3,680.03 is: 5,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.10 : 7,278.18 = 3,680.03 : x
  2. Step 2: Convert to fraction form
    5,275.10/7,278.18 = 3,680.03/x
  3. Step 3: Cross multiply
    5,275.10x = 7,278.18 × 3,680.03
  4. Step 4: Simplify right side
    5,275.10x = 26,783,920.75
  5. Step 5: Solve for x
    x = 26,783,920.75/5,275.10
  6. Step 6: Final answer
    x = 5,077.42

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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.