Home / 1,490.01-2,055.92-826.77

Finding the Fourth Proportional to 1,490.01, 2,055.92 and 826.77

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Solution

The fourth proportional to 1,490.01, 2,055.92 and 826.77 is: 1,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.01 : 2,055.92 = 826.77 : x
  2. Step 2: Convert to fraction form
    1,490.01/2,055.92 = 826.77/x
  3. Step 3: Cross multiply
    1,490.01x = 2,055.92 × 826.77
  4. Step 4: Simplify right side
    1,490.01x = 1,699,768.84
  5. Step 5: Solve for x
    x = 1,699,768.84/1,490.01
  6. Step 6: Final answer
    x = 1,140.78

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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.