Home / 6,945.02-10,407.09-2,780.90

Finding the Fourth Proportional to 6,945.02, 10,407.09 and 2,780.90

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Solution

The fourth proportional to 6,945.02, 10,407.09 and 2,780.90 is: 4,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.02 : 10,407.09 = 2,780.90 : x
  2. Step 2: Convert to fraction form
    6,945.02/10,407.09 = 2,780.90/x
  3. Step 3: Cross multiply
    6,945.02x = 10,407.09 × 2,780.90
  4. Step 4: Simplify right side
    6,945.02x = 28,941,076.58
  5. Step 5: Solve for x
    x = 28,941,076.58/6,945.02
  6. Step 6: Final answer
    x = 4,167.17

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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.