Home / 4,139.12-6,212.76-3,040.40

Finding the Fourth Proportional to 4,139.12, 6,212.76 and 3,040.40

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Solution

The fourth proportional to 4,139.12, 6,212.76 and 3,040.40 is: 4,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.12 : 6,212.76 = 3,040.40 : x
  2. Step 2: Convert to fraction form
    4,139.12/6,212.76 = 3,040.40/x
  3. Step 3: Cross multiply
    4,139.12x = 6,212.76 × 3,040.40
  4. Step 4: Simplify right side
    4,139.12x = 18,889,275.50
  5. Step 5: Solve for x
    x = 18,889,275.50/4,139.12
  6. Step 6: Final answer
    x = 4,563.60

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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.