Home / 7,135.96-10,702.86-1,942.24

Finding the Fourth Proportional to 7,135.96, 10,702.86 and 1,942.24

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Solution

The fourth proportional to 7,135.96, 10,702.86 and 1,942.24 is: 2,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.96 : 10,702.86 = 1,942.24 : x
  2. Step 2: Convert to fraction form
    7,135.96/10,702.86 = 1,942.24/x
  3. Step 3: Cross multiply
    7,135.96x = 10,702.86 × 1,942.24
  4. Step 4: Simplify right side
    7,135.96x = 20,787,522.81
  5. Step 5: Solve for x
    x = 20,787,522.81/7,135.96
  6. Step 6: Final answer
    x = 2,913.07

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1.5x scale

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.