Home / 5,226.12-7,838.64-1,938.60

Finding the Fourth Proportional to 5,226.12, 7,838.64 and 1,938.60

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Solution

The fourth proportional to 5,226.12, 7,838.64 and 1,938.60 is: 2,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.12 : 7,838.64 = 1,938.60 : x
  2. Step 2: Convert to fraction form
    5,226.12/7,838.64 = 1,938.60/x
  3. Step 3: Cross multiply
    5,226.12x = 7,838.64 × 1,938.60
  4. Step 4: Simplify right side
    5,226.12x = 15,195,987.50
  5. Step 5: Solve for x
    x = 15,195,987.50/5,226.12
  6. Step 6: Final answer
    x = 2,907.70

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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.