Home / 7,042.96-9,718.09-4,211.47

Finding the Fourth Proportional to 7,042.96, 9,718.09 and 4,211.47

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Solution

The fourth proportional to 7,042.96, 9,718.09 and 4,211.47 is: 5,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.96 : 9,718.09 = 4,211.47 : x
  2. Step 2: Convert to fraction form
    7,042.96/9,718.09 = 4,211.47/x
  3. Step 3: Cross multiply
    7,042.96x = 9,718.09 × 4,211.47
  4. Step 4: Simplify right side
    7,042.96x = 40,927,444.49
  5. Step 5: Solve for x
    x = 40,927,444.49/7,042.96
  6. Step 6: Final answer
    x = 5,811.11

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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.