Home / 2,775.24-3,830.36-1,781.77

Finding the Fourth Proportional to 2,775.24, 3,830.36 and 1,781.77

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Solution

The fourth proportional to 2,775.24, 3,830.36 and 1,781.77 is: 2,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.24 : 3,830.36 = 1,781.77 : x
  2. Step 2: Convert to fraction form
    2,775.24/3,830.36 = 1,781.77/x
  3. Step 3: Cross multiply
    2,775.24x = 3,830.36 × 1,781.77
  4. Step 4: Simplify right side
    2,775.24x = 6,824,829.78
  5. Step 5: Solve for x
    x = 6,824,829.78/2,775.24
  6. Step 6: Final answer
    x = 2,459.19

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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.