Home / 1,209.83-1,806.51-1,177.02

Finding the Fourth Proportional to 1,209.83, 1,806.51 and 1,177.02

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Solution

The fourth proportional to 1,209.83, 1,806.51 and 1,177.02 is: 1,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.83 : 1,806.51 = 1,177.02 : x
  2. Step 2: Convert to fraction form
    1,209.83/1,806.51 = 1,177.02/x
  3. Step 3: Cross multiply
    1,209.83x = 1,806.51 × 1,177.02
  4. Step 4: Simplify right side
    1,209.83x = 2,126,298.40
  5. Step 5: Solve for x
    x = 2,126,298.40/1,209.83
  6. Step 6: Final answer
    x = 1,757.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.