Home / 7,272.12-10,035.56-4,127.72

Finding the Fourth Proportional to 7,272.12, 10,035.56 and 4,127.72

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Solution

The fourth proportional to 7,272.12, 10,035.56 and 4,127.72 is: 5,696.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.12 : 10,035.56 = 4,127.72 : x
  2. Step 2: Convert to fraction form
    7,272.12/10,035.56 = 4,127.72/x
  3. Step 3: Cross multiply
    7,272.12x = 10,035.56 × 4,127.72
  4. Step 4: Simplify right side
    7,272.12x = 41,423,981.72
  5. Step 5: Solve for x
    x = 41,423,981.72/7,272.12
  6. Step 6: Final answer
    x = 5,696.27

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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.