Home / 3,527.80-4,862.79-2,780.58

Finding the Fourth Proportional to 3,527.80, 4,862.79 and 2,780.58

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Solution

The fourth proportional to 3,527.80, 4,862.79 and 2,780.58 is: 3,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.80 : 4,862.79 = 2,780.58 : x
  2. Step 2: Convert to fraction form
    3,527.80/4,862.79 = 2,780.58/x
  3. Step 3: Cross multiply
    3,527.80x = 4,862.79 × 2,780.58
  4. Step 4: Simplify right side
    3,527.80x = 13,521,376.62
  5. Step 5: Solve for x
    x = 13,521,376.62/3,527.80
  6. Step 6: Final answer
    x = 3,832.81

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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.