Home / 1,385.52-2,076.70-563.40

Finding the Fourth Proportional to 1,385.52, 2,076.70 and 563.40

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Solution

The fourth proportional to 1,385.52, 2,076.70 and 563.40 is: 844.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.52 : 2,076.70 = 563.40 : x
  2. Step 2: Convert to fraction form
    1,385.52/2,076.70 = 563.40/x
  3. Step 3: Cross multiply
    1,385.52x = 2,076.70 × 563.40
  4. Step 4: Simplify right side
    1,385.52x = 1,170,012.78
  5. Step 5: Solve for x
    x = 1,170,012.78/1,385.52
  6. Step 6: Final answer
    x = 844.46

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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.