Home / 1,197.10-1,650.98-1,190.97

Finding the Fourth Proportional to 1,197.10, 1,650.98 and 1,190.97

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Solution

The fourth proportional to 1,197.10, 1,650.98 and 1,190.97 is: 1,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.10 : 1,650.98 = 1,190.97 : x
  2. Step 2: Convert to fraction form
    1,197.10/1,650.98 = 1,190.97/x
  3. Step 3: Cross multiply
    1,197.10x = 1,650.98 × 1,190.97
  4. Step 4: Simplify right side
    1,197.10x = 1,966,270.63
  5. Step 5: Solve for x
    x = 1,966,270.63/1,197.10
  6. Step 6: Final answer
    x = 1,642.53

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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.