Home / 2,730.12-4,095.90-1,431.24

Finding the Fourth Proportional to 2,730.12, 4,095.90 and 1,431.24

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Solution

The fourth proportional to 2,730.12, 4,095.90 and 1,431.24 is: 2,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.12 : 4,095.90 = 1,431.24 : x
  2. Step 2: Convert to fraction form
    2,730.12/4,095.90 = 1,431.24/x
  3. Step 3: Cross multiply
    2,730.12x = 4,095.90 × 1,431.24
  4. Step 4: Simplify right side
    2,730.12x = 5,862,215.92
  5. Step 5: Solve for x
    x = 5,862,215.92/2,730.12
  6. Step 6: Final answer
    x = 2,147.24

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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.