Home / 7,112.98-10,669.76-2,670.19

Finding the Fourth Proportional to 7,112.98, 10,669.76 and 2,670.19

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Solution

The fourth proportional to 7,112.98, 10,669.76 and 2,670.19 is: 4,005.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.98 : 10,669.76 = 2,670.19 : x
  2. Step 2: Convert to fraction form
    7,112.98/10,669.76 = 2,670.19/x
  3. Step 3: Cross multiply
    7,112.98x = 10,669.76 × 2,670.19
  4. Step 4: Simplify right side
    7,112.98x = 28,490,286.45
  5. Step 5: Solve for x
    x = 28,490,286.45/7,112.98
  6. Step 6: Final answer
    x = 4,005.39

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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.