Home / 4,645.13-6,970.08-3,086.21

Finding the Fourth Proportional to 4,645.13, 6,970.08 and 3,086.21

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Solution

The fourth proportional to 4,645.13, 6,970.08 and 3,086.21 is: 4,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.13 : 6,970.08 = 3,086.21 : x
  2. Step 2: Convert to fraction form
    4,645.13/6,970.08 = 3,086.21/x
  3. Step 3: Cross multiply
    4,645.13x = 6,970.08 × 3,086.21
  4. Step 4: Simplify right side
    4,645.13x = 21,511,095.75
  5. Step 5: Solve for x
    x = 21,511,095.75/4,645.13
  6. Step 6: Final answer
    x = 4,630.89

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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.