Home / 1,901.04-2,620.86-1,271.70

Finding the Fourth Proportional to 1,901.04, 2,620.86 and 1,271.70

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Solution

The fourth proportional to 1,901.04, 2,620.86 and 1,271.70 is: 1,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.04 : 2,620.86 = 1,271.70 : x
  2. Step 2: Convert to fraction form
    1,901.04/2,620.86 = 1,271.70/x
  3. Step 3: Cross multiply
    1,901.04x = 2,620.86 × 1,271.70
  4. Step 4: Simplify right side
    1,901.04x = 3,332,947.66
  5. Step 5: Solve for x
    x = 3,332,947.66/1,901.04
  6. Step 6: Final answer
    x = 1,753.22

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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.