Home / 2,199.84-3,298.32-899.80

Finding the Fourth Proportional to 2,199.84, 3,298.32 and 899.80

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Solution

The fourth proportional to 2,199.84, 3,298.32 and 899.80 is: 1,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.84 : 3,298.32 = 899.80 : x
  2. Step 2: Convert to fraction form
    2,199.84/3,298.32 = 899.80/x
  3. Step 3: Cross multiply
    2,199.84x = 3,298.32 × 899.80
  4. Step 4: Simplify right side
    2,199.84x = 2,967,828.34
  5. Step 5: Solve for x
    x = 2,967,828.34/2,199.84
  6. Step 6: Final answer
    x = 1,349.11

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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.