Home / 2,095.20-3,142.08-999.36

Finding the Fourth Proportional to 2,095.20, 3,142.08 and 999.36

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Solution

The fourth proportional to 2,095.20, 3,142.08 and 999.36 is: 1,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.20 : 3,142.08 = 999.36 : x
  2. Step 2: Convert to fraction form
    2,095.20/3,142.08 = 999.36/x
  3. Step 3: Cross multiply
    2,095.20x = 3,142.08 × 999.36
  4. Step 4: Simplify right side
    2,095.20x = 3,140,069.07
  5. Step 5: Solve for x
    x = 3,140,069.07/2,095.20
  6. Step 6: Final answer
    x = 1,498.70

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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.