Home / 2,285.21-3,428.12-1,052.90

Finding the Fourth Proportional to 2,285.21, 3,428.12 and 1,052.90

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Solution

The fourth proportional to 2,285.21, 3,428.12 and 1,052.90 is: 1,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.21 : 3,428.12 = 1,052.90 : x
  2. Step 2: Convert to fraction form
    2,285.21/3,428.12 = 1,052.90/x
  3. Step 3: Cross multiply
    2,285.21x = 3,428.12 × 1,052.90
  4. Step 4: Simplify right side
    2,285.21x = 3,609,465.90
  5. Step 5: Solve for x
    x = 3,609,465.90/2,285.21
  6. Step 6: Final answer
    x = 1,579.49

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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.