Home / 2,639.02-3,640.58-1,743.70

Finding the Fourth Proportional to 2,639.02, 3,640.58 and 1,743.70

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Solution

The fourth proportional to 2,639.02, 3,640.58 and 1,743.70 is: 2,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.02 : 3,640.58 = 1,743.70 : x
  2. Step 2: Convert to fraction form
    2,639.02/3,640.58 = 1,743.70/x
  3. Step 3: Cross multiply
    2,639.02x = 3,640.58 × 1,743.70
  4. Step 4: Simplify right side
    2,639.02x = 6,348,079.35
  5. Step 5: Solve for x
    x = 6,348,079.35/2,639.02
  6. Step 6: Final answer
    x = 2,405.47

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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.