Home / 2,280.24-3,420.36-1,872.18

Finding the Fourth Proportional to 2,280.24, 3,420.36 and 1,872.18

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Solution

The fourth proportional to 2,280.24, 3,420.36 and 1,872.18 is: 2,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.24 : 3,420.36 = 1,872.18 : x
  2. Step 2: Convert to fraction form
    2,280.24/3,420.36 = 1,872.18/x
  3. Step 3: Cross multiply
    2,280.24x = 3,420.36 × 1,872.18
  4. Step 4: Simplify right side
    2,280.24x = 6,403,529.58
  5. Step 5: Solve for x
    x = 6,403,529.58/2,280.24
  6. Step 6: Final answer
    x = 2,808.27

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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.