Home / 2,190.40-3,287.04-1,035.52

Finding the Fourth Proportional to 2,190.40, 3,287.04 and 1,035.52

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Solution

The fourth proportional to 2,190.40, 3,287.04 and 1,035.52 is: 1,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.40 : 3,287.04 = 1,035.52 : x
  2. Step 2: Convert to fraction form
    2,190.40/3,287.04 = 1,035.52/x
  3. Step 3: Cross multiply
    2,190.40x = 3,287.04 × 1,035.52
  4. Step 4: Simplify right side
    2,190.40x = 3,403,774.05
  5. Step 5: Solve for x
    x = 3,403,774.05/2,190.40
  6. Step 6: Final answer
    x = 1,553.95

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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.