Home / 7,316.90-10,974.87-2,123.30

Finding the Fourth Proportional to 7,316.90, 10,974.87 and 2,123.30

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Solution

The fourth proportional to 7,316.90, 10,974.87 and 2,123.30 is: 3,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.90 : 10,974.87 = 2,123.30 : x
  2. Step 2: Convert to fraction form
    7,316.90/10,974.87 = 2,123.30/x
  3. Step 3: Cross multiply
    7,316.90x = 10,974.87 × 2,123.30
  4. Step 4: Simplify right side
    7,316.90x = 23,302,941.47
  5. Step 5: Solve for x
    x = 23,302,941.47/7,316.90
  6. Step 6: Final answer
    x = 3,184.81

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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.