Home / 5,405.61-8,107.99-1,707.95

Finding the Fourth Proportional to 5,405.61, 8,107.99 and 1,707.95

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Solution

The fourth proportional to 5,405.61, 8,107.99 and 1,707.95 is: 2,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.61 : 8,107.99 = 1,707.95 : x
  2. Step 2: Convert to fraction form
    5,405.61/8,107.99 = 1,707.95/x
  3. Step 3: Cross multiply
    5,405.61x = 8,107.99 × 1,707.95
  4. Step 4: Simplify right side
    5,405.61x = 13,848,041.52
  5. Step 5: Solve for x
    x = 13,848,041.52/5,405.61
  6. Step 6: Final answer
    x = 2,561.79

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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.