Home / 3,405.81-4,701.95-2,211.87

Finding the Fourth Proportional to 3,405.81, 4,701.95 and 2,211.87

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Solution

The fourth proportional to 3,405.81, 4,701.95 and 2,211.87 is: 3,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.81 : 4,701.95 = 2,211.87 : x
  2. Step 2: Convert to fraction form
    3,405.81/4,701.95 = 2,211.87/x
  3. Step 3: Cross multiply
    3,405.81x = 4,701.95 × 2,211.87
  4. Step 4: Simplify right side
    3,405.81x = 10,400,096.79
  5. Step 5: Solve for x
    x = 10,400,096.79/3,405.81
  6. Step 6: Final answer
    x = 3,053.63

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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.