Home / 7,411.60-11,117.40-2,146.90

Finding the Fourth Proportional to 7,411.60, 11,117.40 and 2,146.90

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Solution

The fourth proportional to 7,411.60, 11,117.40 and 2,146.90 is: 3,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.60 : 11,117.40 = 2,146.90 : x
  2. Step 2: Convert to fraction form
    7,411.60/11,117.40 = 2,146.90/x
  3. Step 3: Cross multiply
    7,411.60x = 11,117.40 × 2,146.90
  4. Step 4: Simplify right side
    7,411.60x = 23,867,935.33
  5. Step 5: Solve for x
    x = 23,867,935.33/7,411.60
  6. Step 6: Final answer
    x = 3,220.35

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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.