Home / 1,197.02-1,652.19-1,138.43

Finding the Fourth Proportional to 1,197.02, 1,652.19 and 1,138.43

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Solution

The fourth proportional to 1,197.02, 1,652.19 and 1,138.43 is: 1,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.02 : 1,652.19 = 1,138.43 : x
  2. Step 2: Convert to fraction form
    1,197.02/1,652.19 = 1,138.43/x
  3. Step 3: Cross multiply
    1,197.02x = 1,652.19 × 1,138.43
  4. Step 4: Simplify right side
    1,197.02x = 1,880,902.66
  5. Step 5: Solve for x
    x = 1,880,902.66/1,197.02
  6. Step 6: Final answer
    x = 1,571.32

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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.