Home / 3,521.71-5,284.40-2,555.78

Finding the Fourth Proportional to 3,521.71, 5,284.40 and 2,555.78

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Solution

The fourth proportional to 3,521.71, 5,284.40 and 2,555.78 is: 3,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.71 : 5,284.40 = 2,555.78 : x
  2. Step 2: Convert to fraction form
    3,521.71/5,284.40 = 2,555.78/x
  3. Step 3: Cross multiply
    3,521.71x = 5,284.40 × 2,555.78
  4. Step 4: Simplify right side
    3,521.71x = 13,505,763.83
  5. Step 5: Solve for x
    x = 13,505,763.83/3,521.71
  6. Step 6: Final answer
    x = 3,835.00

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1.5x scale

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.