Home / 2,877.09-4,317.77-2,138.41

Finding the Fourth Proportional to 2,877.09, 4,317.77 and 2,138.41

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Solution

The fourth proportional to 2,877.09, 4,317.77 and 2,138.41 is: 3,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.09 : 4,317.77 = 2,138.41 : x
  2. Step 2: Convert to fraction form
    2,877.09/4,317.77 = 2,138.41/x
  3. Step 3: Cross multiply
    2,877.09x = 4,317.77 × 2,138.41
  4. Step 4: Simplify right side
    2,877.09x = 9,233,130.26
  5. Step 5: Solve for x
    x = 9,233,130.26/2,877.09
  6. Step 6: Final answer
    x = 3,209.20

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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.