Home / 1,789.79-2,664.63-1,781.13

Finding the Fourth Proportional to 1,789.79, 2,664.63 and 1,781.13

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Solution

The fourth proportional to 1,789.79, 2,664.63 and 1,781.13 is: 2,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.79 : 2,664.63 = 1,781.13 : x
  2. Step 2: Convert to fraction form
    1,789.79/2,664.63 = 1,781.13/x
  3. Step 3: Cross multiply
    1,789.79x = 2,664.63 × 1,781.13
  4. Step 4: Simplify right side
    1,789.79x = 4,746,052.43
  5. Step 5: Solve for x
    x = 4,746,052.43/1,789.79
  6. Step 6: Final answer
    x = 2,651.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.