Home / 7,620.39-11,430.32-2,355.21

Finding the Fourth Proportional to 7,620.39, 11,430.32 and 2,355.21

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Solution

The fourth proportional to 7,620.39, 11,430.32 and 2,355.21 is: 3,532.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.39 : 11,430.32 = 2,355.21 : x
  2. Step 2: Convert to fraction form
    7,620.39/11,430.32 = 2,355.21/x
  3. Step 3: Cross multiply
    7,620.39x = 11,430.32 × 2,355.21
  4. Step 4: Simplify right side
    7,620.39x = 26,920,792.19
  5. Step 5: Solve for x
    x = 26,920,792.19/7,620.39
  6. Step 6: Final answer
    x = 3,532.73

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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.