Home / 2,213.61-3,055.19-1,317.54

Finding the Fourth Proportional to 2,213.61, 3,055.19 and 1,317.54

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Solution

The fourth proportional to 2,213.61, 3,055.19 and 1,317.54 is: 1,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.61 : 3,055.19 = 1,317.54 : x
  2. Step 2: Convert to fraction form
    2,213.61/3,055.19 = 1,317.54/x
  3. Step 3: Cross multiply
    2,213.61x = 3,055.19 × 1,317.54
  4. Step 4: Simplify right side
    2,213.61x = 4,025,335.03
  5. Step 5: Solve for x
    x = 4,025,335.03/2,213.61
  6. Step 6: Final answer
    x = 1,818.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.