Home / 2,815.02-4,219.56-1,351.08

Finding the Fourth Proportional to 2,815.02, 4,219.56 and 1,351.08

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Solution

The fourth proportional to 2,815.02, 4,219.56 and 1,351.08 is: 2,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.02 : 4,219.56 = 1,351.08 : x
  2. Step 2: Convert to fraction form
    2,815.02/4,219.56 = 1,351.08/x
  3. Step 3: Cross multiply
    2,815.02x = 4,219.56 × 1,351.08
  4. Step 4: Simplify right side
    2,815.02x = 5,700,963.12
  5. Step 5: Solve for x
    x = 5,700,963.12/2,815.02
  6. Step 6: Final answer
    x = 2,025.19

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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.