Home / 5,272.10-7,902.18-2,151.29

Finding the Fourth Proportional to 5,272.10, 7,902.18 and 2,151.29

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Solution

The fourth proportional to 5,272.10, 7,902.18 and 2,151.29 is: 3,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.10 : 7,902.18 = 2,151.29 : x
  2. Step 2: Convert to fraction form
    5,272.10/7,902.18 = 2,151.29/x
  3. Step 3: Cross multiply
    5,272.10x = 7,902.18 × 2,151.29
  4. Step 4: Simplify right side
    5,272.10x = 16,999,880.81
  5. Step 5: Solve for x
    x = 16,999,880.81/5,272.10
  6. Step 6: Final answer
    x = 3,224.50

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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.