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Finding the Fourth Proportional to 4,653.75, 6,977.79 and 1,878.15

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Solution

The fourth proportional to 4,653.75, 6,977.79 and 1,878.15 is: 2,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.75 : 6,977.79 = 1,878.15 : x
  2. Step 2: Convert to fraction form
    4,653.75/6,977.79 = 1,878.15/x
  3. Step 3: Cross multiply
    4,653.75x = 6,977.79 × 1,878.15
  4. Step 4: Simplify right side
    4,653.75x = 13,105,336.29
  5. Step 5: Solve for x
    x = 13,105,336.29/4,653.75
  6. Step 6: Final answer
    x = 2,816.08

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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.