Home / 2,280.66-3,147.31-1,232.72

Finding the Fourth Proportional to 2,280.66, 3,147.31 and 1,232.72

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Solution

The fourth proportional to 2,280.66, 3,147.31 and 1,232.72 is: 1,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.66 : 3,147.31 = 1,232.72 : x
  2. Step 2: Convert to fraction form
    2,280.66/3,147.31 = 1,232.72/x
  3. Step 3: Cross multiply
    2,280.66x = 3,147.31 × 1,232.72
  4. Step 4: Simplify right side
    2,280.66x = 3,879,756.77
  5. Step 5: Solve for x
    x = 3,879,756.77/2,280.66
  6. Step 6: Final answer
    x = 1,701.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.