Home / 2,780.33-3,836.77-1,569.11

Finding the Fourth Proportional to 2,780.33, 3,836.77 and 1,569.11

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Solution

The fourth proportional to 2,780.33, 3,836.77 and 1,569.11 is: 2,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.33 : 3,836.77 = 1,569.11 : x
  2. Step 2: Convert to fraction form
    2,780.33/3,836.77 = 1,569.11/x
  3. Step 3: Cross multiply
    2,780.33x = 3,836.77 × 1,569.11
  4. Step 4: Simplify right side
    2,780.33x = 6,020,291.07
  5. Step 5: Solve for x
    x = 6,020,291.07/2,780.33
  6. Step 6: Final answer
    x = 2,165.32

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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.