Home / 1,641.18-2,263.20-1,267.26

Finding the Fourth Proportional to 1,641.18, 2,263.20 and 1,267.26

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Solution

The fourth proportional to 1,641.18, 2,263.20 and 1,267.26 is: 1,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.18 : 2,263.20 = 1,267.26 : x
  2. Step 2: Convert to fraction form
    1,641.18/2,263.20 = 1,267.26/x
  3. Step 3: Cross multiply
    1,641.18x = 2,263.20 × 1,267.26
  4. Step 4: Simplify right side
    1,641.18x = 2,868,062.83
  5. Step 5: Solve for x
    x = 2,868,062.83/1,641.18
  6. Step 6: Final answer
    x = 1,747.56

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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.