Home / 7,045.27-9,721.79-4,212.08

Finding the Fourth Proportional to 7,045.27, 9,721.79 and 4,212.08

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Solution

The fourth proportional to 7,045.27, 9,721.79 and 4,212.08 is: 5,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.27 : 9,721.79 = 4,212.08 : x
  2. Step 2: Convert to fraction form
    7,045.27/9,721.79 = 4,212.08/x
  3. Step 3: Cross multiply
    7,045.27x = 9,721.79 × 4,212.08
  4. Step 4: Simplify right side
    7,045.27x = 40,948,957.22
  5. Step 5: Solve for x
    x = 40,948,957.22/7,045.27
  6. Step 6: Final answer
    x = 5,812.26

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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.