Home / 1,781.36-2,669.60-1,001.74

Finding the Fourth Proportional to 1,781.36, 2,669.60 and 1,001.74

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Solution

The fourth proportional to 1,781.36, 2,669.60 and 1,001.74 is: 1,501.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.36 : 2,669.60 = 1,001.74 : x
  2. Step 2: Convert to fraction form
    1,781.36/2,669.60 = 1,001.74/x
  3. Step 3: Cross multiply
    1,781.36x = 2,669.60 × 1,001.74
  4. Step 4: Simplify right side
    1,781.36x = 2,674,245.10
  5. Step 5: Solve for x
    x = 2,674,245.10/1,781.36
  6. Step 6: Final answer
    x = 1,501.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.