Home / 5,909.31-8,154.59-3,389.67

Finding the Fourth Proportional to 5,909.31, 8,154.59 and 3,389.67

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Solution

The fourth proportional to 5,909.31, 8,154.59 and 3,389.67 is: 4,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.31 : 8,154.59 = 3,389.67 : x
  2. Step 2: Convert to fraction form
    5,909.31/8,154.59 = 3,389.67/x
  3. Step 3: Cross multiply
    5,909.31x = 8,154.59 × 3,389.67
  4. Step 4: Simplify right side
    5,909.31x = 27,641,352.14
  5. Step 5: Solve for x
    x = 27,641,352.14/5,909.31
  6. Step 6: Final answer
    x = 4,677.59

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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.