Home / 5,359.21-7,390.77-3,677.65

Finding the Fourth Proportional to 5,359.21, 7,390.77 and 3,677.65

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Solution

The fourth proportional to 5,359.21, 7,390.77 and 3,677.65 is: 5,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.21 : 7,390.77 = 3,677.65 : x
  2. Step 2: Convert to fraction form
    5,359.21/7,390.77 = 3,677.65/x
  3. Step 3: Cross multiply
    5,359.21x = 7,390.77 × 3,677.65
  4. Step 4: Simplify right side
    5,359.21x = 27,180,665.29
  5. Step 5: Solve for x
    x = 27,180,665.29/5,359.21
  6. Step 6: Final answer
    x = 5,071.77

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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.