Home / 5,210.43-7,815.12-2,869.65

Finding the Fourth Proportional to 5,210.43, 7,815.12 and 2,869.65

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Solution

The fourth proportional to 5,210.43, 7,815.12 and 2,869.65 is: 4,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.43 : 7,815.12 = 2,869.65 : x
  2. Step 2: Convert to fraction form
    5,210.43/7,815.12 = 2,869.65/x
  3. Step 3: Cross multiply
    5,210.43x = 7,815.12 × 2,869.65
  4. Step 4: Simplify right side
    5,210.43x = 22,426,659.11
  5. Step 5: Solve for x
    x = 22,426,659.11/5,210.43
  6. Step 6: Final answer
    x = 4,304.19

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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.