Home / 1,177.00-1,619.46-1,079.80

Finding the Fourth Proportional to 1,177.00, 1,619.46 and 1,079.80

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Solution

The fourth proportional to 1,177.00, 1,619.46 and 1,079.80 is: 1,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.00 : 1,619.46 = 1,079.80 : x
  2. Step 2: Convert to fraction form
    1,177.00/1,619.46 = 1,079.80/x
  3. Step 3: Cross multiply
    1,177.00x = 1,619.46 × 1,079.80
  4. Step 4: Simplify right side
    1,177.00x = 1,748,688.86
  5. Step 5: Solve for x
    x = 1,748,688.86/1,177.00
  6. Step 6: Final answer
    x = 1,485.72

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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.