Home / 7,640.08-11,438.58-4,859.92

Finding the Fourth Proportional to 7,640.08, 11,438.58 and 4,859.92

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Solution

The fourth proportional to 7,640.08, 11,438.58 and 4,859.92 is: 7,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.08 : 11,438.58 = 4,859.92 : x
  2. Step 2: Convert to fraction form
    7,640.08/11,438.58 = 4,859.92/x
  3. Step 3: Cross multiply
    7,640.08x = 11,438.58 × 4,859.92
  4. Step 4: Simplify right side
    7,640.08x = 55,590,583.71
  5. Step 5: Solve for x
    x = 55,590,583.71/7,640.08
  6. Step 6: Final answer
    x = 7,276.18

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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.