Home / 4,878.80-7,316.82-2,415.08

Finding the Fourth Proportional to 4,878.80, 7,316.82 and 2,415.08

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Solution

The fourth proportional to 4,878.80, 7,316.82 and 2,415.08 is: 3,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.80 : 7,316.82 = 2,415.08 : x
  2. Step 2: Convert to fraction form
    4,878.80/7,316.82 = 2,415.08/x
  3. Step 3: Cross multiply
    4,878.80x = 7,316.82 × 2,415.08
  4. Step 4: Simplify right side
    4,878.80x = 17,670,705.65
  5. Step 5: Solve for x
    x = 17,670,705.65/4,878.80
  6. Step 6: Final answer
    x = 3,621.94

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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.