Home / 7,869.02-11,808.09-2,938.48

Finding the Fourth Proportional to 7,869.02, 11,808.09 and 2,938.48

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Solution

The fourth proportional to 7,869.02, 11,808.09 and 2,938.48 is: 4,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.02 : 11,808.09 = 2,938.48 : x
  2. Step 2: Convert to fraction form
    7,869.02/11,808.09 = 2,938.48/x
  3. Step 3: Cross multiply
    7,869.02x = 11,808.09 × 2,938.48
  4. Step 4: Simplify right side
    7,869.02x = 34,697,777.26
  5. Step 5: Solve for x
    x = 34,697,777.26/7,869.02
  6. Step 6: Final answer
    x = 4,409.42

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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.