Home / 1,948.40-2,919.36-1,370.06

Finding the Fourth Proportional to 1,948.40, 2,919.36 and 1,370.06

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Solution

The fourth proportional to 1,948.40, 2,919.36 and 1,370.06 is: 2,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.40 : 2,919.36 = 1,370.06 : x
  2. Step 2: Convert to fraction form
    1,948.40/2,919.36 = 1,370.06/x
  3. Step 3: Cross multiply
    1,948.40x = 2,919.36 × 1,370.06
  4. Step 4: Simplify right side
    1,948.40x = 3,999,698.36
  5. Step 5: Solve for x
    x = 3,999,698.36/1,948.40
  6. Step 6: Final answer
    x = 2,052.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.