Home / 1,277.80-1,917.48-701.08

Finding the Fourth Proportional to 1,277.80, 1,917.48 and 701.08

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Solution

The fourth proportional to 1,277.80, 1,917.48 and 701.08 is: 1,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.80 : 1,917.48 = 701.08 : x
  2. Step 2: Convert to fraction form
    1,277.80/1,917.48 = 701.08/x
  3. Step 3: Cross multiply
    1,277.80x = 1,917.48 × 701.08
  4. Step 4: Simplify right side
    1,277.80x = 1,344,306.88
  5. Step 5: Solve for x
    x = 1,344,306.88/1,277.80
  6. Step 6: Final answer
    x = 1,052.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.