Home / 5,577.12-8,364.78-1,878.48

Finding the Fourth Proportional to 5,577.12, 8,364.78 and 1,878.48

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Solution

The fourth proportional to 5,577.12, 8,364.78 and 1,878.48 is: 2,817.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.12 : 8,364.78 = 1,878.48 : x
  2. Step 2: Convert to fraction form
    5,577.12/8,364.78 = 1,878.48/x
  3. Step 3: Cross multiply
    5,577.12x = 8,364.78 × 1,878.48
  4. Step 4: Simplify right side
    5,577.12x = 15,713,071.93
  5. Step 5: Solve for x
    x = 15,713,071.93/5,577.12
  6. Step 6: Final answer
    x = 2,817.42

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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.