Home / 4,271.20-6,406.80-3,615.10

Finding the Fourth Proportional to 4,271.20, 6,406.80 and 3,615.10

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Solution

The fourth proportional to 4,271.20, 6,406.80 and 3,615.10 is: 5,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.20 : 6,406.80 = 3,615.10 : x
  2. Step 2: Convert to fraction form
    4,271.20/6,406.80 = 3,615.10/x
  3. Step 3: Cross multiply
    4,271.20x = 6,406.80 × 3,615.10
  4. Step 4: Simplify right side
    4,271.20x = 23,161,222.68
  5. Step 5: Solve for x
    x = 23,161,222.68/4,271.20
  6. Step 6: Final answer
    x = 5,422.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.