Home / 2,760.36-4,139.72-1,461.12

Finding the Fourth Proportional to 2,760.36, 4,139.72 and 1,461.12

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Solution

The fourth proportional to 2,760.36, 4,139.72 and 1,461.12 is: 2,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.36 : 4,139.72 = 1,461.12 : x
  2. Step 2: Convert to fraction form
    2,760.36/4,139.72 = 1,461.12/x
  3. Step 3: Cross multiply
    2,760.36x = 4,139.72 × 1,461.12
  4. Step 4: Simplify right side
    2,760.36x = 6,048,627.69
  5. Step 5: Solve for x
    x = 6,048,627.69/2,760.36
  6. Step 6: Final answer
    x = 2,191.25

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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.