Home / 7,110.60-10,669.10-3,411.40

Finding the Fourth Proportional to 7,110.60, 10,669.10 and 3,411.40

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Solution

The fourth proportional to 7,110.60, 10,669.10 and 3,411.40 is: 5,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.60 : 10,669.10 = 3,411.40 : x
  2. Step 2: Convert to fraction form
    7,110.60/10,669.10 = 3,411.40/x
  3. Step 3: Cross multiply
    7,110.60x = 10,669.10 × 3,411.40
  4. Step 4: Simplify right side
    7,110.60x = 36,396,567.74
  5. Step 5: Solve for x
    x = 36,396,567.74/7,110.60
  6. Step 6: Final answer
    x = 5,118.64

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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.