Home / 1,553.24-2,340.56-1,285.35

Finding the Fourth Proportional to 1,553.24, 2,340.56 and 1,285.35

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Solution

The fourth proportional to 1,553.24, 2,340.56 and 1,285.35 is: 1,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.24 : 2,340.56 = 1,285.35 : x
  2. Step 2: Convert to fraction form
    1,553.24/2,340.56 = 1,285.35/x
  3. Step 3: Cross multiply
    1,553.24x = 2,340.56 × 1,285.35
  4. Step 4: Simplify right side
    1,553.24x = 3,008,432.37
  5. Step 5: Solve for x
    x = 3,008,432.37/1,553.24
  6. Step 6: Final answer
    x = 1,936.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.