Home / 2,815.28-4,225.89-2,301.20

Finding the Fourth Proportional to 2,815.28, 4,225.89 and 2,301.20

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Solution

The fourth proportional to 2,815.28, 4,225.89 and 2,301.20 is: 3,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.28 : 4,225.89 = 2,301.20 : x
  2. Step 2: Convert to fraction form
    2,815.28/4,225.89 = 2,301.20/x
  3. Step 3: Cross multiply
    2,815.28x = 4,225.89 × 2,301.20
  4. Step 4: Simplify right side
    2,815.28x = 9,724,618.07
  5. Step 5: Solve for x
    x = 9,724,618.07/2,815.28
  6. Step 6: Final answer
    x = 3,454.23

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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.