Home / 2,172.85-3,256.67-1,001.25

Finding the Fourth Proportional to 2,172.85, 3,256.67 and 1,001.25

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Solution

The fourth proportional to 2,172.85, 3,256.67 and 1,001.25 is: 1,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.85 : 3,256.67 = 1,001.25 : x
  2. Step 2: Convert to fraction form
    2,172.85/3,256.67 = 1,001.25/x
  3. Step 3: Cross multiply
    2,172.85x = 3,256.67 × 1,001.25
  4. Step 4: Simplify right side
    2,172.85x = 3,260,740.84
  5. Step 5: Solve for x
    x = 3,260,740.84/2,172.85
  6. Step 6: Final answer
    x = 1,500.67

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Double scale
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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.