Home / 4,078.74-6,118.65-1,157.13

Finding the Fourth Proportional to 4,078.74, 6,118.65 and 1,157.13

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Solution

The fourth proportional to 4,078.74, 6,118.65 and 1,157.13 is: 1,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.74 : 6,118.65 = 1,157.13 : x
  2. Step 2: Convert to fraction form
    4,078.74/6,118.65 = 1,157.13/x
  3. Step 3: Cross multiply
    4,078.74x = 6,118.65 × 1,157.13
  4. Step 4: Simplify right side
    4,078.74x = 7,080,073.47
  5. Step 5: Solve for x
    x = 7,080,073.47/4,078.74
  6. Step 6: Final answer
    x = 1,735.85

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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.