Home / 4,079.29-6,118.93-1,157.21

Finding the Fourth Proportional to 4,079.29, 6,118.93 and 1,157.21

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Solution

The fourth proportional to 4,079.29, 6,118.93 and 1,157.21 is: 1,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.29 : 6,118.93 = 1,157.21 : x
  2. Step 2: Convert to fraction form
    4,079.29/6,118.93 = 1,157.21/x
  3. Step 3: Cross multiply
    4,079.29x = 6,118.93 × 1,157.21
  4. Step 4: Simplify right side
    4,079.29x = 7,080,881.20
  5. Step 5: Solve for x
    x = 7,080,881.20/4,079.29
  6. Step 6: Final answer
    x = 1,735.81

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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.