Home / 2,952.54-4,076.11-2,155.01

Finding the Fourth Proportional to 2,952.54, 4,076.11 and 2,155.01

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Solution

The fourth proportional to 2,952.54, 4,076.11 and 2,155.01 is: 2,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.54 : 4,076.11 = 2,155.01 : x
  2. Step 2: Convert to fraction form
    2,952.54/4,076.11 = 2,155.01/x
  3. Step 3: Cross multiply
    2,952.54x = 4,076.11 × 2,155.01
  4. Step 4: Simplify right side
    2,952.54x = 8,784,057.81
  5. Step 5: Solve for x
    x = 8,784,057.81/2,952.54
  6. Step 6: Final answer
    x = 2,975.09

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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.