Home / 7,870.92-10,860.48-4,514.88

Finding the Fourth Proportional to 7,870.92, 10,860.48 and 4,514.88

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Solution

The fourth proportional to 7,870.92, 10,860.48 and 4,514.88 is: 6,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.92 : 10,860.48 = 4,514.88 : x
  2. Step 2: Convert to fraction form
    7,870.92/10,860.48 = 4,514.88/x
  3. Step 3: Cross multiply
    7,870.92x = 10,860.48 × 4,514.88
  4. Step 4: Simplify right side
    7,870.92x = 49,033,763.94
  5. Step 5: Solve for x
    x = 49,033,763.94/7,870.92
  6. Step 6: Final answer
    x = 6,229.74

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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.