Home / 1,275.36-1,901.15-1,206.11

Finding the Fourth Proportional to 1,275.36, 1,901.15 and 1,206.11

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Solution

The fourth proportional to 1,275.36, 1,901.15 and 1,206.11 is: 1,797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275.36 : 1,901.15 = 1,206.11 : x
  2. Step 2: Convert to fraction form
    1,275.36/1,901.15 = 1,206.11/x
  3. Step 3: Cross multiply
    1,275.36x = 1,901.15 × 1,206.11
  4. Step 4: Simplify right side
    1,275.36x = 2,292,995.36
  5. Step 5: Solve for x
    x = 2,292,995.36/1,275.36
  6. Step 6: Final answer
    x = 1,797.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.