Home / 5,228.10-7,837.50-1,940.40

Finding the Fourth Proportional to 5,228.10, 7,837.50 and 1,940.40

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Solution

The fourth proportional to 5,228.10, 7,837.50 and 1,940.40 is: 2,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.10 : 7,837.50 = 1,940.40 : x
  2. Step 2: Convert to fraction form
    5,228.10/7,837.50 = 1,940.40/x
  3. Step 3: Cross multiply
    5,228.10x = 7,837.50 × 1,940.40
  4. Step 4: Simplify right side
    5,228.10x = 15,207,885
  5. Step 5: Solve for x
    x = 15,207,885/5,228.10
  6. Step 6: Final answer
    x = 2,908.87

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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.