Home / 5,243.51-7,236.01-2,885.51

Finding the Fourth Proportional to 5,243.51, 7,236.01 and 2,885.51

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Solution

The fourth proportional to 5,243.51, 7,236.01 and 2,885.51 is: 3,981.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.51 : 7,236.01 = 2,885.51 : x
  2. Step 2: Convert to fraction form
    5,243.51/7,236.01 = 2,885.51/x
  3. Step 3: Cross multiply
    5,243.51x = 7,236.01 × 2,885.51
  4. Step 4: Simplify right side
    5,243.51x = 20,879,579.22
  5. Step 5: Solve for x
    x = 20,879,579.22/5,243.51
  6. Step 6: Final answer
    x = 3,981.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.