Home / 1,591.65-2,197.54-1,172.47

Finding the Fourth Proportional to 1,591.65, 2,197.54 and 1,172.47

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Solution

The fourth proportional to 1,591.65, 2,197.54 and 1,172.47 is: 1,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.65 : 2,197.54 = 1,172.47 : x
  2. Step 2: Convert to fraction form
    1,591.65/2,197.54 = 1,172.47/x
  3. Step 3: Cross multiply
    1,591.65x = 2,197.54 × 1,172.47
  4. Step 4: Simplify right side
    1,591.65x = 2,576,553.94
  5. Step 5: Solve for x
    x = 2,576,553.94/1,591.65
  6. Step 6: Final answer
    x = 1,618.80

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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.