Home / 1,798.07-2,681.33-1,781.64

Finding the Fourth Proportional to 1,798.07, 2,681.33 and 1,781.64

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Solution

The fourth proportional to 1,798.07, 2,681.33 and 1,781.64 is: 2,656.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.07 : 2,681.33 = 1,781.64 : x
  2. Step 2: Convert to fraction form
    1,798.07/2,681.33 = 1,781.64/x
  3. Step 3: Cross multiply
    1,798.07x = 2,681.33 × 1,781.64
  4. Step 4: Simplify right side
    1,798.07x = 4,777,155.87
  5. Step 5: Solve for x
    x = 4,777,155.87/1,798.07
  6. Step 6: Final answer
    x = 2,656.83

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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.