Home / 2,639.63-3,641.85-1,755.57

Finding the Fourth Proportional to 2,639.63, 3,641.85 and 1,755.57

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Solution

The fourth proportional to 2,639.63, 3,641.85 and 1,755.57 is: 2,422.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.63 : 3,641.85 = 1,755.57 : x
  2. Step 2: Convert to fraction form
    2,639.63/3,641.85 = 1,755.57/x
  3. Step 3: Cross multiply
    2,639.63x = 3,641.85 × 1,755.57
  4. Step 4: Simplify right side
    2,639.63x = 6,393,522.60
  5. Step 5: Solve for x
    x = 6,393,522.60/2,639.63
  6. Step 6: Final answer
    x = 2,422.13

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1.5x scale

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.