Home / 7,721.73-10,656-4,184.94

Finding the Fourth Proportional to 7,721.73, 10,656 and 4,184.94

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Solution

The fourth proportional to 7,721.73, 10,656 and 4,184.94 is: 5,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.73 : 10,656 = 4,184.94 : x
  2. Step 2: Convert to fraction form
    7,721.73/10,656 = 4,184.94/x
  3. Step 3: Cross multiply
    7,721.73x = 10,656 × 4,184.94
  4. Step 4: Simplify right side
    7,721.73x = 44,594,720.64
  5. Step 5: Solve for x
    x = 44,594,720.64/7,721.73
  6. Step 6: Final answer
    x = 5,775.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.