Home / 3,138.56-4,331.18-1,741.32

Finding the Fourth Proportional to 3,138.56, 4,331.18 and 1,741.32

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Solution

The fourth proportional to 3,138.56, 4,331.18 and 1,741.32 is: 2,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.56 : 4,331.18 = 1,741.32 : x
  2. Step 2: Convert to fraction form
    3,138.56/4,331.18 = 1,741.32/x
  3. Step 3: Cross multiply
    3,138.56x = 4,331.18 × 1,741.32
  4. Step 4: Simplify right side
    3,138.56x = 7,541,970.36
  5. Step 5: Solve for x
    x = 7,541,970.36/3,138.56
  6. Step 6: Final answer
    x = 2,403.00

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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.