Home / 3,418.56-5,127.60-1,953.12

Finding the Fourth Proportional to 3,418.56, 5,127.60 and 1,953.12

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Solution

The fourth proportional to 3,418.56, 5,127.60 and 1,953.12 is: 2,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.56 : 5,127.60 = 1,953.12 : x
  2. Step 2: Convert to fraction form
    3,418.56/5,127.60 = 1,953.12/x
  3. Step 3: Cross multiply
    3,418.56x = 5,127.60 × 1,953.12
  4. Step 4: Simplify right side
    3,418.56x = 10,014,818.11
  5. Step 5: Solve for x
    x = 10,014,818.11/3,418.56
  6. Step 6: Final answer
    x = 2,929.54

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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.