Home / 5,255.51-7,883.26-1,306.76

Finding the Fourth Proportional to 5,255.51, 7,883.26 and 1,306.76

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Solution

The fourth proportional to 5,255.51, 7,883.26 and 1,306.76 is: 1,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.51 : 7,883.26 = 1,306.76 : x
  2. Step 2: Convert to fraction form
    5,255.51/7,883.26 = 1,306.76/x
  3. Step 3: Cross multiply
    5,255.51x = 7,883.26 × 1,306.76
  4. Step 4: Simplify right side
    5,255.51x = 10,301,486.15
  5. Step 5: Solve for x
    x = 10,301,486.15/5,255.51
  6. Step 6: Final answer
    x = 1,960.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.