Home / 2,420.45-3,340.22-1,426.34

Finding the Fourth Proportional to 2,420.45, 3,340.22 and 1,426.34

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Solution

The fourth proportional to 2,420.45, 3,340.22 and 1,426.34 is: 1,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.45 : 3,340.22 = 1,426.34 : x
  2. Step 2: Convert to fraction form
    2,420.45/3,340.22 = 1,426.34/x
  3. Step 3: Cross multiply
    2,420.45x = 3,340.22 × 1,426.34
  4. Step 4: Simplify right side
    2,420.45x = 4,764,265.56
  5. Step 5: Solve for x
    x = 4,764,265.56/2,420.45
  6. Step 6: Final answer
    x = 1,968.34

Related Problems

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Half scale
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Double scale
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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.