Home / 2,293.71-3,438.91-1,855.50

Finding the Fourth Proportional to 2,293.71, 3,438.91 and 1,855.50

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Solution

The fourth proportional to 2,293.71, 3,438.91 and 1,855.50 is: 2,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.71 : 3,438.91 = 1,855.50 : x
  2. Step 2: Convert to fraction form
    2,293.71/3,438.91 = 1,855.50/x
  3. Step 3: Cross multiply
    2,293.71x = 3,438.91 × 1,855.50
  4. Step 4: Simplify right side
    2,293.71x = 6,380,897.51
  5. Step 5: Solve for x
    x = 6,380,897.51/2,293.71
  6. Step 6: Final answer
    x = 2,781.91

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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.