Home / 1,790.29-2,665.38-1,781.63

Finding the Fourth Proportional to 1,790.29, 2,665.38 and 1,781.63

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Solution

The fourth proportional to 1,790.29, 2,665.38 and 1,781.63 is: 2,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.29 : 2,665.38 = 1,781.63 : x
  2. Step 2: Convert to fraction form
    1,790.29/2,665.38 = 1,781.63/x
  3. Step 3: Cross multiply
    1,790.29x = 2,665.38 × 1,781.63
  4. Step 4: Simplify right side
    1,790.29x = 4,748,720.97
  5. Step 5: Solve for x
    x = 4,748,720.97/1,790.29
  6. Step 6: Final answer
    x = 2,652.49

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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.