Home / 4,079.99-6,118.88-1,117.72

Finding the Fourth Proportional to 4,079.99, 6,118.88 and 1,117.72

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Solution

The fourth proportional to 4,079.99, 6,118.88 and 1,117.72 is: 1,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.99 : 6,118.88 = 1,117.72 : x
  2. Step 2: Convert to fraction form
    4,079.99/6,118.88 = 1,117.72/x
  3. Step 3: Cross multiply
    4,079.99x = 6,118.88 × 1,117.72
  4. Step 4: Simplify right side
    4,079.99x = 6,839,194.55
  5. Step 5: Solve for x
    x = 6,839,194.55/4,079.99
  6. Step 6: Final answer
    x = 1,676.28

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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.