Home / 2,280.67-3,147.06-1,285.93

Finding the Fourth Proportional to 2,280.67, 3,147.06 and 1,285.93

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Solution

The fourth proportional to 2,280.67, 3,147.06 and 1,285.93 is: 1,774.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.67 : 3,147.06 = 1,285.93 : x
  2. Step 2: Convert to fraction form
    2,280.67/3,147.06 = 1,285.93/x
  3. Step 3: Cross multiply
    2,280.67x = 3,147.06 × 1,285.93
  4. Step 4: Simplify right side
    2,280.67x = 4,046,898.87
  5. Step 5: Solve for x
    x = 4,046,898.87/2,280.67
  6. Step 6: Final answer
    x = 1,774.43

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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.