Home / 7,121.04-9,827.57-4,097.09

Finding the Fourth Proportional to 7,121.04, 9,827.57 and 4,097.09

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Solution

The fourth proportional to 7,121.04, 9,827.57 and 4,097.09 is: 5,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.04 : 9,827.57 = 4,097.09 : x
  2. Step 2: Convert to fraction form
    7,121.04/9,827.57 = 4,097.09/x
  3. Step 3: Cross multiply
    7,121.04x = 9,827.57 × 4,097.09
  4. Step 4: Simplify right side
    7,121.04x = 40,264,369.15
  5. Step 5: Solve for x
    x = 40,264,369.15/7,121.04
  6. Step 6: Final answer
    x = 5,654.28

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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.