Home / 7,119.33-10,678.01-2,187.60

Finding the Fourth Proportional to 7,119.33, 10,678.01 and 2,187.60

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Solution

The fourth proportional to 7,119.33, 10,678.01 and 2,187.60 is: 3,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.33 : 10,678.01 = 2,187.60 : x
  2. Step 2: Convert to fraction form
    7,119.33/10,678.01 = 2,187.60/x
  3. Step 3: Cross multiply
    7,119.33x = 10,678.01 × 2,187.60
  4. Step 4: Simplify right side
    7,119.33x = 23,359,203.74
  5. Step 5: Solve for x
    x = 23,359,203.74/7,119.33
  6. Step 6: Final answer
    x = 3,281.10

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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.