Home / 1,815.46-2,720.96-1,292.63

Finding the Fourth Proportional to 1,815.46, 2,720.96 and 1,292.63

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Solution

The fourth proportional to 1,815.46, 2,720.96 and 1,292.63 is: 1,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.46 : 2,720.96 = 1,292.63 : x
  2. Step 2: Convert to fraction form
    1,815.46/2,720.96 = 1,292.63/x
  3. Step 3: Cross multiply
    1,815.46x = 2,720.96 × 1,292.63
  4. Step 4: Simplify right side
    1,815.46x = 3,517,184.15
  5. Step 5: Solve for x
    x = 3,517,184.15/1,815.46
  6. Step 6: Final answer
    x = 1,937.35

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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.