Home / 2,904.40-4,356.60-2,213.20

Finding the Fourth Proportional to 2,904.40, 4,356.60 and 2,213.20

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Solution

The fourth proportional to 2,904.40, 4,356.60 and 2,213.20 is: 3,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.40 : 4,356.60 = 2,213.20 : x
  2. Step 2: Convert to fraction form
    2,904.40/4,356.60 = 2,213.20/x
  3. Step 3: Cross multiply
    2,904.40x = 4,356.60 × 2,213.20
  4. Step 4: Simplify right side
    2,904.40x = 9,642,027.12
  5. Step 5: Solve for x
    x = 9,642,027.12/2,904.40
  6. Step 6: Final answer
    x = 3,319.80

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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.