Home / 2,925.15-4,387.96-977.36

Finding the Fourth Proportional to 2,925.15, 4,387.96 and 977.36

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Solution

The fourth proportional to 2,925.15, 4,387.96 and 977.36 is: 1,466.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.15 : 4,387.96 = 977.36 : x
  2. Step 2: Convert to fraction form
    2,925.15/4,387.96 = 977.36/x
  3. Step 3: Cross multiply
    2,925.15x = 4,387.96 × 977.36
  4. Step 4: Simplify right side
    2,925.15x = 4,288,589.76
  5. Step 5: Solve for x
    x = 4,288,589.76/2,925.15
  6. Step 6: Final answer
    x = 1,466.11

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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.