Home / 2,421.96-3,343.44-1,426.92

Finding the Fourth Proportional to 2,421.96, 3,343.44 and 1,426.92

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Solution

The fourth proportional to 2,421.96, 3,343.44 and 1,426.92 is: 1,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.96 : 3,343.44 = 1,426.92 : x
  2. Step 2: Convert to fraction form
    2,421.96/3,343.44 = 1,426.92/x
  3. Step 3: Cross multiply
    2,421.96x = 3,343.44 × 1,426.92
  4. Step 4: Simplify right side
    2,421.96x = 4,770,821.40
  5. Step 5: Solve for x
    x = 4,770,821.40/2,421.96
  6. Step 6: Final answer
    x = 1,969.82

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Half scale
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Double scale
Find fourth proportional to 2,422.96, 3,344.82 and 1,427.92
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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.