Home / 6,778.36-9,354.04-4,123.89

Finding the Fourth Proportional to 6,778.36, 9,354.04 and 4,123.89

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Solution

The fourth proportional to 6,778.36, 9,354.04 and 4,123.89 is: 5,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.36 : 9,354.04 = 4,123.89 : x
  2. Step 2: Convert to fraction form
    6,778.36/9,354.04 = 4,123.89/x
  3. Step 3: Cross multiply
    6,778.36x = 9,354.04 × 4,123.89
  4. Step 4: Simplify right side
    6,778.36x = 38,575,021.71
  5. Step 5: Solve for x
    x = 38,575,021.71/6,778.36
  6. Step 6: Final answer
    x = 5,690.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.