Home / 3,187.21-4,774.59-2,088.25

Finding the Fourth Proportional to 3,187.21, 4,774.59 and 2,088.25

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Solution

The fourth proportional to 3,187.21, 4,774.59 and 2,088.25 is: 3,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.21 : 4,774.59 = 2,088.25 : x
  2. Step 2: Convert to fraction form
    3,187.21/4,774.59 = 2,088.25/x
  3. Step 3: Cross multiply
    3,187.21x = 4,774.59 × 2,088.25
  4. Step 4: Simplify right side
    3,187.21x = 9,970,518.92
  5. Step 5: Solve for x
    x = 9,970,518.92/3,187.21
  6. Step 6: Final answer
    x = 3,128.29

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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.