Home / 2,245.28-3,365.78-784.04

Finding the Fourth Proportional to 2,245.28, 3,365.78 and 784.04

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Solution

The fourth proportional to 2,245.28, 3,365.78 and 784.04 is: 1,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.28 : 3,365.78 = 784.04 : x
  2. Step 2: Convert to fraction form
    2,245.28/3,365.78 = 784.04/x
  3. Step 3: Cross multiply
    2,245.28x = 3,365.78 × 784.04
  4. Step 4: Simplify right side
    2,245.28x = 2,638,885.40
  5. Step 5: Solve for x
    x = 2,638,885.40/2,245.28
  6. Step 6: Final answer
    x = 1,175.31

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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.