Home / 4,720.55-7,112.79-3,916.82

Finding the Fourth Proportional to 4,720.55, 7,112.79 and 3,916.82

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Solution

The fourth proportional to 4,720.55, 7,112.79 and 3,916.82 is: 5,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.55 : 7,112.79 = 3,916.82 : x
  2. Step 2: Convert to fraction form
    4,720.55/7,112.79 = 3,916.82/x
  3. Step 3: Cross multiply
    4,720.55x = 7,112.79 × 3,916.82
  4. Step 4: Simplify right side
    4,720.55x = 27,859,518.13
  5. Step 5: Solve for x
    x = 27,859,518.13/4,720.55
  6. Step 6: Final answer
    x = 5,901.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.