Home / 5,920.50-8,878.16-3,146.51

Finding the Fourth Proportional to 5,920.50, 8,878.16 and 3,146.51

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Solution

The fourth proportional to 5,920.50, 8,878.16 and 3,146.51 is: 4,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.50 : 8,878.16 = 3,146.51 : x
  2. Step 2: Convert to fraction form
    5,920.50/8,878.16 = 3,146.51/x
  3. Step 3: Cross multiply
    5,920.50x = 8,878.16 × 3,146.51
  4. Step 4: Simplify right side
    5,920.50x = 27,935,174.83
  5. Step 5: Solve for x
    x = 27,935,174.83/5,920.50
  6. Step 6: Final answer
    x = 4,718.38

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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.