Home / 4,778.36-7,166.82-1,615.88

Finding the Fourth Proportional to 4,778.36, 7,166.82 and 1,615.88

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Solution

The fourth proportional to 4,778.36, 7,166.82 and 1,615.88 is: 2,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.36 : 7,166.82 = 1,615.88 : x
  2. Step 2: Convert to fraction form
    4,778.36/7,166.82 = 1,615.88/x
  3. Step 3: Cross multiply
    4,778.36x = 7,166.82 × 1,615.88
  4. Step 4: Simplify right side
    4,778.36x = 11,580,721.10
  5. Step 5: Solve for x
    x = 11,580,721.10/4,778.36
  6. Step 6: Final answer
    x = 2,423.58

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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.