Home / 7,640.60-11,458.20-2,710.40

Finding the Fourth Proportional to 7,640.60, 11,458.20 and 2,710.40

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Solution

The fourth proportional to 7,640.60, 11,458.20 and 2,710.40 is: 4,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.60 : 11,458.20 = 2,710.40 : x
  2. Step 2: Convert to fraction form
    7,640.60/11,458.20 = 2,710.40/x
  3. Step 3: Cross multiply
    7,640.60x = 11,458.20 × 2,710.40
  4. Step 4: Simplify right side
    7,640.60x = 31,056,305.28
  5. Step 5: Solve for x
    x = 31,056,305.28/7,640.60
  6. Step 6: Final answer
    x = 4,064.64

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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.