Home / 4,708.80-7,062.69-1,421.13

Finding the Fourth Proportional to 4,708.80, 7,062.69 and 1,421.13

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Solution

The fourth proportional to 4,708.80, 7,062.69 and 1,421.13 is: 2,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,708.80 : 7,062.69 = 1,421.13 : x
  2. Step 2: Convert to fraction form
    4,708.80/7,062.69 = 1,421.13/x
  3. Step 3: Cross multiply
    4,708.80x = 7,062.69 × 1,421.13
  4. Step 4: Simplify right side
    4,708.80x = 10,037,000.64
  5. Step 5: Solve for x
    x = 10,037,000.64/4,708.80
  6. Step 6: Final answer
    x = 2,131.54

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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.