Home / 6,116.88-9,178.36-2,421.76

Finding the Fourth Proportional to 6,116.88, 9,178.36 and 2,421.76

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Solution

The fourth proportional to 6,116.88, 9,178.36 and 2,421.76 is: 3,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,116.88 : 9,178.36 = 2,421.76 : x
  2. Step 2: Convert to fraction form
    6,116.88/9,178.36 = 2,421.76/x
  3. Step 3: Cross multiply
    6,116.88x = 9,178.36 × 2,421.76
  4. Step 4: Simplify right side
    6,116.88x = 22,227,785.11
  5. Step 5: Solve for x
    x = 22,227,785.11/6,116.88
  6. Step 6: Final answer
    x = 3,633.84

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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.