Home / 7,271.75-10,035.15-4,128.14

Finding the Fourth Proportional to 7,271.75, 10,035.15 and 4,128.14

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Solution

The fourth proportional to 7,271.75, 10,035.15 and 4,128.14 is: 5,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.75 : 10,035.15 = 4,128.14 : x
  2. Step 2: Convert to fraction form
    7,271.75/10,035.15 = 4,128.14/x
  3. Step 3: Cross multiply
    7,271.75x = 10,035.15 × 4,128.14
  4. Step 4: Simplify right side
    7,271.75x = 41,426,504.12
  5. Step 5: Solve for x
    x = 41,426,504.12/7,271.75
  6. Step 6: Final answer
    x = 5,696.91

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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.