Home / 2,270.77-3,133.30-1,275.85

Finding the Fourth Proportional to 2,270.77, 3,133.30 and 1,275.85

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Solution

The fourth proportional to 2,270.77, 3,133.30 and 1,275.85 is: 1,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.77 : 3,133.30 = 1,275.85 : x
  2. Step 2: Convert to fraction form
    2,270.77/3,133.30 = 1,275.85/x
  3. Step 3: Cross multiply
    2,270.77x = 3,133.30 × 1,275.85
  4. Step 4: Simplify right side
    2,270.77x = 3,997,623.92
  5. Step 5: Solve for x
    x = 3,997,623.92/2,270.77
  6. Step 6: Final answer
    x = 1,760.47

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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.