Home / 2,419.81-3,339.20-1,343.03

Finding the Fourth Proportional to 2,419.81, 3,339.20 and 1,343.03

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Solution

The fourth proportional to 2,419.81, 3,339.20 and 1,343.03 is: 1,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.81 : 3,339.20 = 1,343.03 : x
  2. Step 2: Convert to fraction form
    2,419.81/3,339.20 = 1,343.03/x
  3. Step 3: Cross multiply
    2,419.81x = 3,339.20 × 1,343.03
  4. Step 4: Simplify right side
    2,419.81x = 4,484,653.82
  5. Step 5: Solve for x
    x = 4,484,653.82/2,419.81
  6. Step 6: Final answer
    x = 1,853.30

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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.