Home / 2,193.90-3,285.45-1,643.10

Finding the Fourth Proportional to 2,193.90, 3,285.45 and 1,643.10

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Solution

The fourth proportional to 2,193.90, 3,285.45 and 1,643.10 is: 2,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.90 : 3,285.45 = 1,643.10 : x
  2. Step 2: Convert to fraction form
    2,193.90/3,285.45 = 1,643.10/x
  3. Step 3: Cross multiply
    2,193.90x = 3,285.45 × 1,643.10
  4. Step 4: Simplify right side
    2,193.90x = 5,398,322.90
  5. Step 5: Solve for x
    x = 5,398,322.90/2,193.90
  6. Step 6: Final answer
    x = 2,460.61

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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.