Home / 4,154.90-6,231.71-1,521.78

Finding the Fourth Proportional to 4,154.90, 6,231.71 and 1,521.78

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Solution

The fourth proportional to 4,154.90, 6,231.71 and 1,521.78 is: 2,282.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,154.90 : 6,231.71 = 1,521.78 : x
  2. Step 2: Convert to fraction form
    4,154.90/6,231.71 = 1,521.78/x
  3. Step 3: Cross multiply
    4,154.90x = 6,231.71 × 1,521.78
  4. Step 4: Simplify right side
    4,154.90x = 9,483,284.03
  5. Step 5: Solve for x
    x = 9,483,284.03/4,154.90
  6. Step 6: Final answer
    x = 2,282.44

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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.