Home / 1,591.04-2,195.20-1,197.12

Finding the Fourth Proportional to 1,591.04, 2,195.20 and 1,197.12

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Solution

The fourth proportional to 1,591.04, 2,195.20 and 1,197.12 is: 1,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.04 : 2,195.20 = 1,197.12 : x
  2. Step 2: Convert to fraction form
    1,591.04/2,195.20 = 1,197.12/x
  3. Step 3: Cross multiply
    1,591.04x = 2,195.20 × 1,197.12
  4. Step 4: Simplify right side
    1,591.04x = 2,627,917.82
  5. Step 5: Solve for x
    x = 2,627,917.82/1,591.04
  6. Step 6: Final answer
    x = 1,651.70

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Half scale
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Double scale
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1.5x scale

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.