Home / 2,172.54-3,001.37-1,511.67

Finding the Fourth Proportional to 2,172.54, 3,001.37 and 1,511.67

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Solution

The fourth proportional to 2,172.54, 3,001.37 and 1,511.67 is: 2,088.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.54 : 3,001.37 = 1,511.67 : x
  2. Step 2: Convert to fraction form
    2,172.54/3,001.37 = 1,511.67/x
  3. Step 3: Cross multiply
    2,172.54x = 3,001.37 × 1,511.67
  4. Step 4: Simplify right side
    2,172.54x = 4,537,080.99
  5. Step 5: Solve for x
    x = 4,537,080.99/2,172.54
  6. Step 6: Final answer
    x = 2,088.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.