Home / 7,990.04-11,984.76-2,146.50

Finding the Fourth Proportional to 7,990.04, 11,984.76 and 2,146.50

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Solution

The fourth proportional to 7,990.04, 11,984.76 and 2,146.50 is: 3,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.04 : 11,984.76 = 2,146.50 : x
  2. Step 2: Convert to fraction form
    7,990.04/11,984.76 = 2,146.50/x
  3. Step 3: Cross multiply
    7,990.04x = 11,984.76 × 2,146.50
  4. Step 4: Simplify right side
    7,990.04x = 25,725,287.34
  5. Step 5: Solve for x
    x = 25,725,287.34/7,990.04
  6. Step 6: Final answer
    x = 3,219.67

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Double scale
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Similar ratio
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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.