Home / 2,283.49-3,150.90-1,275.21

Finding the Fourth Proportional to 2,283.49, 3,150.90 and 1,275.21

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Solution

The fourth proportional to 2,283.49, 3,150.90 and 1,275.21 is: 1,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.49 : 3,150.90 = 1,275.21 : x
  2. Step 2: Convert to fraction form
    2,283.49/3,150.90 = 1,275.21/x
  3. Step 3: Cross multiply
    2,283.49x = 3,150.90 × 1,275.21
  4. Step 4: Simplify right side
    2,283.49x = 4,018,059.19
  5. Step 5: Solve for x
    x = 4,018,059.19/2,283.49
  6. Step 6: Final answer
    x = 1,759.61

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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.