Home / 1,553.74-2,341.31-1,285.85

Finding the Fourth Proportional to 1,553.74, 2,341.31 and 1,285.85

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Solution

The fourth proportional to 1,553.74, 2,341.31 and 1,285.85 is: 1,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.74 : 2,341.31 = 1,285.85 : x
  2. Step 2: Convert to fraction form
    1,553.74/2,341.31 = 1,285.85/x
  3. Step 3: Cross multiply
    1,553.74x = 2,341.31 × 1,285.85
  4. Step 4: Simplify right side
    1,553.74x = 3,010,573.46
  5. Step 5: Solve for x
    x = 3,010,573.46/1,553.74
  6. Step 6: Final answer
    x = 1,937.63

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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.