Home / 5,920.84-8,172.37-3,403.21

Finding the Fourth Proportional to 5,920.84, 8,172.37 and 3,403.21

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Solution

The fourth proportional to 5,920.84, 8,172.37 and 3,403.21 is: 4,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.84 : 8,172.37 = 3,403.21 : x
  2. Step 2: Convert to fraction form
    5,920.84/8,172.37 = 3,403.21/x
  3. Step 3: Cross multiply
    5,920.84x = 8,172.37 × 3,403.21
  4. Step 4: Simplify right side
    5,920.84x = 27,812,262.37
  5. Step 5: Solve for x
    x = 27,812,262.37/5,920.84
  6. Step 6: Final answer
    x = 4,697.35

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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.