Home / 2,720.17-3,753.70-1,672.03

Finding the Fourth Proportional to 2,720.17, 3,753.70 and 1,672.03

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Solution

The fourth proportional to 2,720.17, 3,753.70 and 1,672.03 is: 2,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.17 : 3,753.70 = 1,672.03 : x
  2. Step 2: Convert to fraction form
    2,720.17/3,753.70 = 1,672.03/x
  3. Step 3: Cross multiply
    2,720.17x = 3,753.70 × 1,672.03
  4. Step 4: Simplify right side
    2,720.17x = 6,276,299.01
  5. Step 5: Solve for x
    x = 6,276,299.01/2,720.17
  6. Step 6: Final answer
    x = 2,307.32

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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.