Home / 2,487.27-3,428.61-2,088.75

Finding the Fourth Proportional to 2,487.27, 3,428.61 and 2,088.75

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Solution

The fourth proportional to 2,487.27, 3,428.61 and 2,088.75 is: 2,879.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.27 : 3,428.61 = 2,088.75 : x
  2. Step 2: Convert to fraction form
    2,487.27/3,428.61 = 2,088.75/x
  3. Step 3: Cross multiply
    2,487.27x = 3,428.61 × 2,088.75
  4. Step 4: Simplify right side
    2,487.27x = 7,161,509.14
  5. Step 5: Solve for x
    x = 7,161,509.14/2,487.27
  6. Step 6: Final answer
    x = 2,879.26

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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.