Home / 1,515.32-2,286.63-1,461.08

Finding the Fourth Proportional to 1,515.32, 2,286.63 and 1,461.08

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Solution

The fourth proportional to 1,515.32, 2,286.63 and 1,461.08 is: 2,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.32 : 2,286.63 = 1,461.08 : x
  2. Step 2: Convert to fraction form
    1,515.32/2,286.63 = 1,461.08/x
  3. Step 3: Cross multiply
    1,515.32x = 2,286.63 × 1,461.08
  4. Step 4: Simplify right side
    1,515.32x = 3,340,949.36
  5. Step 5: Solve for x
    x = 3,340,949.36/1,515.32
  6. Step 6: Final answer
    x = 2,204.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.