Home / 1,481.32-2,219.18-887.12

Finding the Fourth Proportional to 1,481.32, 2,219.18 and 887.12

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Solution

The fourth proportional to 1,481.32, 2,219.18 and 887.12 is: 1,329.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.32 : 2,219.18 = 887.12 : x
  2. Step 2: Convert to fraction form
    1,481.32/2,219.18 = 887.12/x
  3. Step 3: Cross multiply
    1,481.32x = 2,219.18 × 887.12
  4. Step 4: Simplify right side
    1,481.32x = 1,968,678.96
  5. Step 5: Solve for x
    x = 1,968,678.96/1,481.32
  6. Step 6: Final answer
    x = 1,329.00

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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.