Home / 1,344.03-2,019.12-1,288.74

Finding the Fourth Proportional to 1,344.03, 2,019.12 and 1,288.74

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Solution

The fourth proportional to 1,344.03, 2,019.12 and 1,288.74 is: 1,936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.03 : 2,019.12 = 1,288.74 : x
  2. Step 2: Convert to fraction form
    1,344.03/2,019.12 = 1,288.74/x
  3. Step 3: Cross multiply
    1,344.03x = 2,019.12 × 1,288.74
  4. Step 4: Simplify right side
    1,344.03x = 2,602,120.71
  5. Step 5: Solve for x
    x = 2,602,120.71/1,344.03
  6. Step 6: Final answer
    x = 1,936.06

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1.5x scale

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.