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Finding the Fourth Proportional to 1,193.32, 1,647.84 and 898.08

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Solution

The fourth proportional to 1,193.32, 1,647.84 and 898.08 is: 1,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.32 : 1,647.84 = 898.08 : x
  2. Step 2: Convert to fraction form
    1,193.32/1,647.84 = 898.08/x
  3. Step 3: Cross multiply
    1,193.32x = 1,647.84 × 898.08
  4. Step 4: Simplify right side
    1,193.32x = 1,479,892.15
  5. Step 5: Solve for x
    x = 1,479,892.15/1,193.32
  6. Step 6: Final answer
    x = 1,240.15

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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.