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Finding the Fourth Proportional to 1,184.48, 1,774.56 and 818.24

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Solution

The fourth proportional to 1,184.48, 1,774.56 and 818.24 is: 1,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.48 : 1,774.56 = 818.24 : x
  2. Step 2: Convert to fraction form
    1,184.48/1,774.56 = 818.24/x
  3. Step 3: Cross multiply
    1,184.48x = 1,774.56 × 818.24
  4. Step 4: Simplify right side
    1,184.48x = 1,452,015.97
  5. Step 5: Solve for x
    x = 1,452,015.97/1,184.48
  6. Step 6: Final answer
    x = 1,225.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.