Home / 2,419.32-3,338.70-1,424.55

Finding the Fourth Proportional to 2,419.32, 3,338.70 and 1,424.55

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Solution

The fourth proportional to 2,419.32, 3,338.70 and 1,424.55 is: 1,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.32 : 3,338.70 = 1,424.55 : x
  2. Step 2: Convert to fraction form
    2,419.32/3,338.70 = 1,424.55/x
  3. Step 3: Cross multiply
    2,419.32x = 3,338.70 × 1,424.55
  4. Step 4: Simplify right side
    2,419.32x = 4,756,145.09
  5. Step 5: Solve for x
    x = 4,756,145.09/2,419.32
  6. Step 6: Final answer
    x = 1,965.90

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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.