Home / 2,270.95-3,133.81-1,276.23

Finding the Fourth Proportional to 2,270.95, 3,133.81 and 1,276.23

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Solution

The fourth proportional to 2,270.95, 3,133.81 and 1,276.23 is: 1,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.95 : 3,133.81 = 1,276.23 : x
  2. Step 2: Convert to fraction form
    2,270.95/3,133.81 = 1,276.23/x
  3. Step 3: Cross multiply
    2,270.95x = 3,133.81 × 1,276.23
  4. Step 4: Simplify right side
    2,270.95x = 3,999,462.34
  5. Step 5: Solve for x
    x = 3,999,462.34/2,270.95
  6. Step 6: Final answer
    x = 1,761.14

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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.