Home / 7,138.33-10,708.21-2,457.72

Finding the Fourth Proportional to 7,138.33, 10,708.21 and 2,457.72

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Solution

The fourth proportional to 7,138.33, 10,708.21 and 2,457.72 is: 3,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.33 : 10,708.21 = 2,457.72 : x
  2. Step 2: Convert to fraction form
    7,138.33/10,708.21 = 2,457.72/x
  3. Step 3: Cross multiply
    7,138.33x = 10,708.21 × 2,457.72
  4. Step 4: Simplify right side
    7,138.33x = 26,317,758.29
  5. Step 5: Solve for x
    x = 26,317,758.29/7,138.33
  6. Step 6: Final answer
    x = 3,686.82

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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.