Home / 1,458.60-2,010.51-986.34

Finding the Fourth Proportional to 1,458.60, 2,010.51 and 986.34

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Solution

The fourth proportional to 1,458.60, 2,010.51 and 986.34 is: 1,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.60 : 2,010.51 = 986.34 : x
  2. Step 2: Convert to fraction form
    1,458.60/2,010.51 = 986.34/x
  3. Step 3: Cross multiply
    1,458.60x = 2,010.51 × 986.34
  4. Step 4: Simplify right side
    1,458.60x = 1,983,046.43
  5. Step 5: Solve for x
    x = 1,983,046.43/1,458.60
  6. Step 6: Final answer
    x = 1,359.55

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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.