Home / 2,639.88-3,641.45-1,743.63

Finding the Fourth Proportional to 2,639.88, 3,641.45 and 1,743.63

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Solution

The fourth proportional to 2,639.88, 3,641.45 and 1,743.63 is: 2,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.88 : 3,641.45 = 1,743.63 : x
  2. Step 2: Convert to fraction form
    2,639.88/3,641.45 = 1,743.63/x
  3. Step 3: Cross multiply
    2,639.88x = 3,641.45 × 1,743.63
  4. Step 4: Simplify right side
    2,639.88x = 6,349,341.46
  5. Step 5: Solve for x
    x = 6,349,341.46/2,639.88
  6. Step 6: Final answer
    x = 2,405.16

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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.