Home / 4,878.59-7,317.90-1,180.81

Finding the Fourth Proportional to 4,878.59, 7,317.90 and 1,180.81

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Solution

The fourth proportional to 4,878.59, 7,317.90 and 1,180.81 is: 1,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.59 : 7,317.90 = 1,180.81 : x
  2. Step 2: Convert to fraction form
    4,878.59/7,317.90 = 1,180.81/x
  3. Step 3: Cross multiply
    4,878.59x = 7,317.90 × 1,180.81
  4. Step 4: Simplify right side
    4,878.59x = 8,641,031.20
  5. Step 5: Solve for x
    x = 8,641,031.20/4,878.59
  6. Step 6: Final answer
    x = 1,771.21

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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.