Home / 1,273.32-1,901.50-1,259.56

Finding the Fourth Proportional to 1,273.32, 1,901.50 and 1,259.56

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Solution

The fourth proportional to 1,273.32, 1,901.50 and 1,259.56 is: 1,880.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.32 : 1,901.50 = 1,259.56 : x
  2. Step 2: Convert to fraction form
    1,273.32/1,901.50 = 1,259.56/x
  3. Step 3: Cross multiply
    1,273.32x = 1,901.50 × 1,259.56
  4. Step 4: Simplify right side
    1,273.32x = 2,395,053.34
  5. Step 5: Solve for x
    x = 2,395,053.34/1,273.32
  6. Step 6: Final answer
    x = 1,880.95

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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.