Home / 5,920.71-8,170.85-3,403.63

Finding the Fourth Proportional to 5,920.71, 8,170.85 and 3,403.63

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Solution

The fourth proportional to 5,920.71, 8,170.85 and 3,403.63 is: 4,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.71 : 8,170.85 = 3,403.63 : x
  2. Step 2: Convert to fraction form
    5,920.71/8,170.85 = 3,403.63/x
  3. Step 3: Cross multiply
    5,920.71x = 8,170.85 × 3,403.63
  4. Step 4: Simplify right side
    5,920.71x = 27,810,533.17
  5. Step 5: Solve for x
    x = 27,810,533.17/5,920.71
  6. Step 6: Final answer
    x = 4,697.17

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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.