Home / 2,516.08-3,771.40-1,215.76

Finding the Fourth Proportional to 2,516.08, 3,771.40 and 1,215.76

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Solution

The fourth proportional to 2,516.08, 3,771.40 and 1,215.76 is: 1,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.08 : 3,771.40 = 1,215.76 : x
  2. Step 2: Convert to fraction form
    2,516.08/3,771.40 = 1,215.76/x
  3. Step 3: Cross multiply
    2,516.08x = 3,771.40 × 1,215.76
  4. Step 4: Simplify right side
    2,516.08x = 4,585,117.26
  5. Step 5: Solve for x
    x = 4,585,117.26/2,516.08
  6. Step 6: Final answer
    x = 1,822.33

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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.