Home / 2,333.13-3,219.72-1,285.20

Finding the Fourth Proportional to 2,333.13, 3,219.72 and 1,285.20

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Solution

The fourth proportional to 2,333.13, 3,219.72 and 1,285.20 is: 1,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.13 : 3,219.72 = 1,285.20 : x
  2. Step 2: Convert to fraction form
    2,333.13/3,219.72 = 1,285.20/x
  3. Step 3: Cross multiply
    2,333.13x = 3,219.72 × 1,285.20
  4. Step 4: Simplify right side
    2,333.13x = 4,137,984.14
  5. Step 5: Solve for x
    x = 4,137,984.14/2,333.13
  6. Step 6: Final answer
    x = 1,773.58

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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.