Home / 1,639.10-2,454.60-1,566.20

Finding the Fourth Proportional to 1,639.10, 2,454.60 and 1,566.20

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Solution

The fourth proportional to 1,639.10, 2,454.60 and 1,566.20 is: 2,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.10 : 2,454.60 = 1,566.20 : x
  2. Step 2: Convert to fraction form
    1,639.10/2,454.60 = 1,566.20/x
  3. Step 3: Cross multiply
    1,639.10x = 2,454.60 × 1,566.20
  4. Step 4: Simplify right side
    1,639.10x = 3,844,394.52
  5. Step 5: Solve for x
    x = 3,844,394.52/1,639.10
  6. Step 6: Final answer
    x = 2,345.43

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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.