Home / 4,911.90-7,369.14-1,792.20

Finding the Fourth Proportional to 4,911.90, 7,369.14 and 1,792.20

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Solution

The fourth proportional to 4,911.90, 7,369.14 and 1,792.20 is: 2,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.90 : 7,369.14 = 1,792.20 : x
  2. Step 2: Convert to fraction form
    4,911.90/7,369.14 = 1,792.20/x
  3. Step 3: Cross multiply
    4,911.90x = 7,369.14 × 1,792.20
  4. Step 4: Simplify right side
    4,911.90x = 13,206,972.71
  5. Step 5: Solve for x
    x = 13,206,972.71/4,911.90
  6. Step 6: Final answer
    x = 2,688.77

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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.