Home / 2,767.18-3,821.70-1,885.36

Finding the Fourth Proportional to 2,767.18, 3,821.70 and 1,885.36

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Solution

The fourth proportional to 2,767.18, 3,821.70 and 1,885.36 is: 2,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.18 : 3,821.70 = 1,885.36 : x
  2. Step 2: Convert to fraction form
    2,767.18/3,821.70 = 1,885.36/x
  3. Step 3: Cross multiply
    2,767.18x = 3,821.70 × 1,885.36
  4. Step 4: Simplify right side
    2,767.18x = 7,205,280.31
  5. Step 5: Solve for x
    x = 7,205,280.31/2,767.18
  6. Step 6: Final answer
    x = 2,603.84

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1.5x scale

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.