Home / 4,905.91-6,679.58-4,890.34

Finding the Fourth Proportional to 4,905.91, 6,679.58 and 4,890.34

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Solution

The fourth proportional to 4,905.91, 6,679.58 and 4,890.34 is: 6,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.91 : 6,679.58 = 4,890.34 : x
  2. Step 2: Convert to fraction form
    4,905.91/6,679.58 = 4,890.34/x
  3. Step 3: Cross multiply
    4,905.91x = 6,679.58 × 4,890.34
  4. Step 4: Simplify right side
    4,905.91x = 32,665,417.26
  5. Step 5: Solve for x
    x = 32,665,417.26/4,905.91
  6. Step 6: Final answer
    x = 6,658.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.