Home / 3,030.75-4,542.39-2,151.86

Finding the Fourth Proportional to 3,030.75, 4,542.39 and 2,151.86

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Solution

The fourth proportional to 3,030.75, 4,542.39 and 2,151.86 is: 3,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.75 : 4,542.39 = 2,151.86 : x
  2. Step 2: Convert to fraction form
    3,030.75/4,542.39 = 2,151.86/x
  3. Step 3: Cross multiply
    3,030.75x = 4,542.39 × 2,151.86
  4. Step 4: Simplify right side
    3,030.75x = 9,774,564.63
  5. Step 5: Solve for x
    x = 9,774,564.63/3,030.75
  6. Step 6: Final answer
    x = 3,225.13

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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.