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Finding the Fourth Proportional to 1,197.49, 1,784.47 and 1,158.34

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Solution

The fourth proportional to 1,197.49, 1,784.47 and 1,158.34 is: 1,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.49 : 1,784.47 = 1,158.34 : x
  2. Step 2: Convert to fraction form
    1,197.49/1,784.47 = 1,158.34/x
  3. Step 3: Cross multiply
    1,197.49x = 1,784.47 × 1,158.34
  4. Step 4: Simplify right side
    1,197.49x = 2,067,022.98
  5. Step 5: Solve for x
    x = 2,067,022.98/1,197.49
  6. Step 6: Final answer
    x = 1,726.13

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1.5x scale

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.