Home / 2,925.45-4,388.41-977.66

Finding the Fourth Proportional to 2,925.45, 4,388.41 and 977.66

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Solution

The fourth proportional to 2,925.45, 4,388.41 and 977.66 is: 1,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.45 : 4,388.41 = 977.66 : x
  2. Step 2: Convert to fraction form
    2,925.45/4,388.41 = 977.66/x
  3. Step 3: Cross multiply
    2,925.45x = 4,388.41 × 977.66
  4. Step 4: Simplify right side
    2,925.45x = 4,290,372.92
  5. Step 5: Solve for x
    x = 4,290,372.92/2,925.45
  6. Step 6: Final answer
    x = 1,466.57

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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.