Home / 1,047.20-1,441.85-889.50

Finding the Fourth Proportional to 1,047.20, 1,441.85 and 889.50

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Solution

The fourth proportional to 1,047.20, 1,441.85 and 889.50 is: 1,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.20 : 1,441.85 = 889.50 : x
  2. Step 2: Convert to fraction form
    1,047.20/1,441.85 = 889.50/x
  3. Step 3: Cross multiply
    1,047.20x = 1,441.85 × 889.50
  4. Step 4: Simplify right side
    1,047.20x = 1,282,525.58
  5. Step 5: Solve for x
    x = 1,282,525.58/1,047.20
  6. Step 6: Final answer
    x = 1,224.72

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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.