Home / 2,270.50-3,133.35-1,275.77

Finding the Fourth Proportional to 2,270.50, 3,133.35 and 1,275.77

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Solution

The fourth proportional to 2,270.50, 3,133.35 and 1,275.77 is: 1,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.50 : 3,133.35 = 1,275.77 : x
  2. Step 2: Convert to fraction form
    2,270.50/3,133.35 = 1,275.77/x
  3. Step 3: Cross multiply
    2,270.50x = 3,133.35 × 1,275.77
  4. Step 4: Simplify right side
    2,270.50x = 3,997,441.76
  5. Step 5: Solve for x
    x = 3,997,441.76/2,270.50
  6. Step 6: Final answer
    x = 1,760.60

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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.