Home / 1,640.20-2,263.52-1,246.52

Finding the Fourth Proportional to 1,640.20, 2,263.52 and 1,246.52

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Solution

The fourth proportional to 1,640.20, 2,263.52 and 1,246.52 is: 1,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.20 : 2,263.52 = 1,246.52 : x
  2. Step 2: Convert to fraction form
    1,640.20/2,263.52 = 1,246.52/x
  3. Step 3: Cross multiply
    1,640.20x = 2,263.52 × 1,246.52
  4. Step 4: Simplify right side
    1,640.20x = 2,821,522.95
  5. Step 5: Solve for x
    x = 2,821,522.95/1,640.20
  6. Step 6: Final answer
    x = 1,720.23

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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.