Home / 7,119.06-10,678.60-2,188.67

Finding the Fourth Proportional to 7,119.06, 10,678.60 and 2,188.67

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Solution

The fourth proportional to 7,119.06, 10,678.60 and 2,188.67 is: 3,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.06 : 10,678.60 = 2,188.67 : x
  2. Step 2: Convert to fraction form
    7,119.06/10,678.60 = 2,188.67/x
  3. Step 3: Cross multiply
    7,119.06x = 10,678.60 × 2,188.67
  4. Step 4: Simplify right side
    7,119.06x = 23,371,931.46
  5. Step 5: Solve for x
    x = 23,371,931.46/7,119.06
  6. Step 6: Final answer
    x = 3,283.01

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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.