Home / 4,708.06-7,062.75-1,420.78

Finding the Fourth Proportional to 4,708.06, 7,062.75 and 1,420.78

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Solution

The fourth proportional to 4,708.06, 7,062.75 and 1,420.78 is: 2,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,708.06 : 7,062.75 = 1,420.78 : x
  2. Step 2: Convert to fraction form
    4,708.06/7,062.75 = 1,420.78/x
  3. Step 3: Cross multiply
    4,708.06x = 7,062.75 × 1,420.78
  4. Step 4: Simplify right side
    4,708.06x = 10,034,613.95
  5. Step 5: Solve for x
    x = 10,034,613.95/4,708.06
  6. Step 6: Final answer
    x = 2,131.37

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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.