Home / 3,750.90-5,625.86-977.76

Finding the Fourth Proportional to 3,750.90, 5,625.86 and 977.76

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Solution

The fourth proportional to 3,750.90, 5,625.86 and 977.76 is: 1,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.90 : 5,625.86 = 977.76 : x
  2. Step 2: Convert to fraction form
    3,750.90/5,625.86 = 977.76/x
  3. Step 3: Cross multiply
    3,750.90x = 5,625.86 × 977.76
  4. Step 4: Simplify right side
    3,750.90x = 5,500,735.98
  5. Step 5: Solve for x
    x = 5,500,735.98/3,750.90
  6. Step 6: Final answer
    x = 1,466.51

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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.