Home / 7,640.32-11,464.86-4,130.36

Finding the Fourth Proportional to 7,640.32, 11,464.86 and 4,130.36

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Solution

The fourth proportional to 7,640.32, 11,464.86 and 4,130.36 is: 6,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.32 : 11,464.86 = 4,130.36 : x
  2. Step 2: Convert to fraction form
    7,640.32/11,464.86 = 4,130.36/x
  3. Step 3: Cross multiply
    7,640.32x = 11,464.86 × 4,130.36
  4. Step 4: Simplify right side
    7,640.32x = 47,353,999.15
  5. Step 5: Solve for x
    x = 47,353,999.15/7,640.32
  6. Step 6: Final answer
    x = 6,197.91

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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.