Home / 5,741.16-7,919.10-3,947.82

Finding the Fourth Proportional to 5,741.16, 7,919.10 and 3,947.82

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Solution

The fourth proportional to 5,741.16, 7,919.10 and 3,947.82 is: 5,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,741.16 : 7,919.10 = 3,947.82 : x
  2. Step 2: Convert to fraction form
    5,741.16/7,919.10 = 3,947.82/x
  3. Step 3: Cross multiply
    5,741.16x = 7,919.10 × 3,947.82
  4. Step 4: Simplify right side
    5,741.16x = 31,263,181.36
  5. Step 5: Solve for x
    x = 31,263,181.36/5,741.16
  6. Step 6: Final answer
    x = 5,445.45

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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.