Home / 2,816.20-4,228.14-1,948.36

Finding the Fourth Proportional to 2,816.20, 4,228.14 and 1,948.36

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Solution

The fourth proportional to 2,816.20, 4,228.14 and 1,948.36 is: 2,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.20 : 4,228.14 = 1,948.36 : x
  2. Step 2: Convert to fraction form
    2,816.20/4,228.14 = 1,948.36/x
  3. Step 3: Cross multiply
    2,816.20x = 4,228.14 × 1,948.36
  4. Step 4: Simplify right side
    2,816.20x = 8,237,938.85
  5. Step 5: Solve for x
    x = 8,237,938.85/2,816.20
  6. Step 6: Final answer
    x = 2,925.20

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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.