Home / 2,760.07-4,140.02-1,200.08

Finding the Fourth Proportional to 2,760.07, 4,140.02 and 1,200.08

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Solution

The fourth proportional to 2,760.07, 4,140.02 and 1,200.08 is: 1,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.07 : 4,140.02 = 1,200.08 : x
  2. Step 2: Convert to fraction form
    2,760.07/4,140.02 = 1,200.08/x
  3. Step 3: Cross multiply
    2,760.07x = 4,140.02 × 1,200.08
  4. Step 4: Simplify right side
    2,760.07x = 4,968,330.75
  5. Step 5: Solve for x
    x = 4,968,330.75/2,760.07
  6. Step 6: Final answer
    x = 1,800.07

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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.