Home / 2,421.54-3,340.62-1,426.20

Finding the Fourth Proportional to 2,421.54, 3,340.62 and 1,426.20

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Solution

The fourth proportional to 2,421.54, 3,340.62 and 1,426.20 is: 1,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.54 : 3,340.62 = 1,426.20 : x
  2. Step 2: Convert to fraction form
    2,421.54/3,340.62 = 1,426.20/x
  3. Step 3: Cross multiply
    2,421.54x = 3,340.62 × 1,426.20
  4. Step 4: Simplify right side
    2,421.54x = 4,764,392.24
  5. Step 5: Solve for x
    x = 4,764,392.24/2,421.54
  6. Step 6: Final answer
    x = 1,967.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.