Home / 1,851.46-2,777.18-928.15

Finding the Fourth Proportional to 1,851.46, 2,777.18 and 928.15

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Solution

The fourth proportional to 1,851.46, 2,777.18 and 928.15 is: 1,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.46 : 2,777.18 = 928.15 : x
  2. Step 2: Convert to fraction form
    1,851.46/2,777.18 = 928.15/x
  3. Step 3: Cross multiply
    1,851.46x = 2,777.18 × 928.15
  4. Step 4: Simplify right side
    1,851.46x = 2,577,639.62
  5. Step 5: Solve for x
    x = 2,577,639.62/1,851.46
  6. Step 6: Final answer
    x = 1,392.22

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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.