Home / 2,508.18-3,762.68-865.19

Finding the Fourth Proportional to 2,508.18, 3,762.68 and 865.19

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Solution

The fourth proportional to 2,508.18, 3,762.68 and 865.19 is: 1,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.18 : 3,762.68 = 865.19 : x
  2. Step 2: Convert to fraction form
    2,508.18/3,762.68 = 865.19/x
  3. Step 3: Cross multiply
    2,508.18x = 3,762.68 × 865.19
  4. Step 4: Simplify right side
    2,508.18x = 3,255,438.19
  5. Step 5: Solve for x
    x = 3,255,438.19/2,508.18
  6. Step 6: Final answer
    x = 1,297.93

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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.