Home / 1,277.24-1,914.25-545.95

Finding the Fourth Proportional to 1,277.24, 1,914.25 and 545.95

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Solution

The fourth proportional to 1,277.24, 1,914.25 and 545.95 is: 818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.24 : 1,914.25 = 545.95 : x
  2. Step 2: Convert to fraction form
    1,277.24/1,914.25 = 545.95/x
  3. Step 3: Cross multiply
    1,277.24x = 1,914.25 × 545.95
  4. Step 4: Simplify right side
    1,277.24x = 1,045,090.26
  5. Step 5: Solve for x
    x = 1,045,090.26/1,277.24
  6. Step 6: Final answer
    x = 818.24

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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.