Home / 4,068.29-6,102.68-1,990.05

Finding the Fourth Proportional to 4,068.29, 6,102.68 and 1,990.05

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Solution

The fourth proportional to 4,068.29, 6,102.68 and 1,990.05 is: 2,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.29 : 6,102.68 = 1,990.05 : x
  2. Step 2: Convert to fraction form
    4,068.29/6,102.68 = 1,990.05/x
  3. Step 3: Cross multiply
    4,068.29x = 6,102.68 × 1,990.05
  4. Step 4: Simplify right side
    4,068.29x = 12,144,628.38
  5. Step 5: Solve for x
    x = 12,144,628.38/4,068.29
  6. Step 6: Final answer
    x = 2,985.20

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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.