Home / 2,925.80-4,385.88-976.92

Finding the Fourth Proportional to 2,925.80, 4,385.88 and 976.92

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Solution

The fourth proportional to 2,925.80, 4,385.88 and 976.92 is: 1,464.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.80 : 4,385.88 = 976.92 : x
  2. Step 2: Convert to fraction form
    2,925.80/4,385.88 = 976.92/x
  3. Step 3: Cross multiply
    2,925.80x = 4,385.88 × 976.92
  4. Step 4: Simplify right side
    2,925.80x = 4,284,653.89
  5. Step 5: Solve for x
    x = 4,284,653.89/2,925.80
  6. Step 6: Final answer
    x = 1,464.44

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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.