Home / 7,123.71-10,685.73-2,193.39

Finding the Fourth Proportional to 7,123.71, 10,685.73 and 2,193.39

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Solution

The fourth proportional to 7,123.71, 10,685.73 and 2,193.39 is: 3,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.71 : 10,685.73 = 2,193.39 : x
  2. Step 2: Convert to fraction form
    7,123.71/10,685.73 = 2,193.39/x
  3. Step 3: Cross multiply
    7,123.71x = 10,685.73 × 2,193.39
  4. Step 4: Simplify right side
    7,123.71x = 23,437,973.32
  5. Step 5: Solve for x
    x = 23,437,973.32/7,123.71
  6. Step 6: Final answer
    x = 3,290.14

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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.