Home / 7,407.81-10,222.70-4,050.72

Finding the Fourth Proportional to 7,407.81, 10,222.70 and 4,050.72

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Solution

The fourth proportional to 7,407.81, 10,222.70 and 4,050.72 is: 5,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.81 : 10,222.70 = 4,050.72 : x
  2. Step 2: Convert to fraction form
    7,407.81/10,222.70 = 4,050.72/x
  3. Step 3: Cross multiply
    7,407.81x = 10,222.70 × 4,050.72
  4. Step 4: Simplify right side
    7,407.81x = 41,409,275.09
  5. Step 5: Solve for x
    x = 41,409,275.09/7,407.81
  6. Step 6: Final answer
    x = 5,589.95

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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.