Home / 2,280.14-3,419.49-981.26

Finding the Fourth Proportional to 2,280.14, 3,419.49 and 981.26

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Solution

The fourth proportional to 2,280.14, 3,419.49 and 981.26 is: 1,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.14 : 3,419.49 = 981.26 : x
  2. Step 2: Convert to fraction form
    2,280.14/3,419.49 = 981.26/x
  3. Step 3: Cross multiply
    2,280.14x = 3,419.49 × 981.26
  4. Step 4: Simplify right side
    2,280.14x = 3,355,408.76
  5. Step 5: Solve for x
    x = 3,355,408.76/2,280.14
  6. Step 6: Final answer
    x = 1,471.58

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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.