Home / 2,631.16-3,630.28-1,790.36

Finding the Fourth Proportional to 2,631.16, 3,630.28 and 1,790.36

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Solution

The fourth proportional to 2,631.16, 3,630.28 and 1,790.36 is: 2,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.16 : 3,630.28 = 1,790.36 : x
  2. Step 2: Convert to fraction form
    2,631.16/3,630.28 = 1,790.36/x
  3. Step 3: Cross multiply
    2,631.16x = 3,630.28 × 1,790.36
  4. Step 4: Simplify right side
    2,631.16x = 6,499,508.10
  5. Step 5: Solve for x
    x = 6,499,508.10/2,631.16
  6. Step 6: Final answer
    x = 2,470.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.