Home / 1,507.96-2,081.56-948.66

Finding the Fourth Proportional to 1,507.96, 2,081.56 and 948.66

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Solution

The fourth proportional to 1,507.96, 2,081.56 and 948.66 is: 1,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.96 : 2,081.56 = 948.66 : x
  2. Step 2: Convert to fraction form
    1,507.96/2,081.56 = 948.66/x
  3. Step 3: Cross multiply
    1,507.96x = 2,081.56 × 948.66
  4. Step 4: Simplify right side
    1,507.96x = 1,974,692.71
  5. Step 5: Solve for x
    x = 1,974,692.71/1,507.96
  6. Step 6: Final answer
    x = 1,309.51

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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.