Home / 5,157.48-7,116.21-2,919.18

Finding the Fourth Proportional to 5,157.48, 7,116.21 and 2,919.18

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Solution

The fourth proportional to 5,157.48, 7,116.21 and 2,919.18 is: 4,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.48 : 7,116.21 = 2,919.18 : x
  2. Step 2: Convert to fraction form
    5,157.48/7,116.21 = 2,919.18/x
  3. Step 3: Cross multiply
    5,157.48x = 7,116.21 × 2,919.18
  4. Step 4: Simplify right side
    5,157.48x = 20,773,497.91
  5. Step 5: Solve for x
    x = 20,773,497.91/5,157.48
  6. Step 6: Final answer
    x = 4,027.84

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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.