Home / 5,079.77-7,620.81-1,792.89

Finding the Fourth Proportional to 5,079.77, 7,620.81 and 1,792.89

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Solution

The fourth proportional to 5,079.77, 7,620.81 and 1,792.89 is: 2,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.77 : 7,620.81 = 1,792.89 : x
  2. Step 2: Convert to fraction form
    5,079.77/7,620.81 = 1,792.89/x
  3. Step 3: Cross multiply
    5,079.77x = 7,620.81 × 1,792.89
  4. Step 4: Simplify right side
    5,079.77x = 13,663,274.04
  5. Step 5: Solve for x
    x = 13,663,274.04/5,079.77
  6. Step 6: Final answer
    x = 2,689.75

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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.