Home / 6,642.60-9,166.85-3,658.45

Finding the Fourth Proportional to 6,642.60, 9,166.85 and 3,658.45

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Solution

The fourth proportional to 6,642.60, 9,166.85 and 3,658.45 is: 5,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.60 : 9,166.85 = 3,658.45 : x
  2. Step 2: Convert to fraction form
    6,642.60/9,166.85 = 3,658.45/x
  3. Step 3: Cross multiply
    6,642.60x = 9,166.85 × 3,658.45
  4. Step 4: Simplify right side
    6,642.60x = 33,536,436.59
  5. Step 5: Solve for x
    x = 33,536,436.59/6,642.60
  6. Step 6: Final answer
    x = 5,048.69

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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.