Home / 1,177.42-1,766.36-561.82

Finding the Fourth Proportional to 1,177.42, 1,766.36 and 561.82

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Solution

The fourth proportional to 1,177.42, 1,766.36 and 561.82 is: 842.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.42 : 1,766.36 = 561.82 : x
  2. Step 2: Convert to fraction form
    1,177.42/1,766.36 = 561.82/x
  3. Step 3: Cross multiply
    1,177.42x = 1,766.36 × 561.82
  4. Step 4: Simplify right side
    1,177.42x = 992,373.36
  5. Step 5: Solve for x
    x = 992,373.36/1,177.42
  6. Step 6: Final answer
    x = 842.84

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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.