Home / 7,407.19-10,222.55-4,221.46

Finding the Fourth Proportional to 7,407.19, 10,222.55 and 4,221.46

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Solution

The fourth proportional to 7,407.19, 10,222.55 and 4,221.46 is: 5,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.19 : 10,222.55 = 4,221.46 : x
  2. Step 2: Convert to fraction form
    7,407.19/10,222.55 = 4,221.46/x
  3. Step 3: Cross multiply
    7,407.19x = 10,222.55 × 4,221.46
  4. Step 4: Simplify right side
    7,407.19x = 43,154,013.70
  5. Step 5: Solve for x
    x = 43,154,013.70/7,407.19
  6. Step 6: Final answer
    x = 5,825.97

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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.