Home / 7,720.05-10,653.68-4,362.87

Finding the Fourth Proportional to 7,720.05, 10,653.68 and 4,362.87

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Solution

The fourth proportional to 7,720.05, 10,653.68 and 4,362.87 is: 6,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.05 : 10,653.68 = 4,362.87 : x
  2. Step 2: Convert to fraction form
    7,720.05/10,653.68 = 4,362.87/x
  3. Step 3: Cross multiply
    7,720.05x = 10,653.68 × 4,362.87
  4. Step 4: Simplify right side
    7,720.05x = 46,480,599.05
  5. Step 5: Solve for x
    x = 46,480,599.05/7,720.05
  6. Step 6: Final answer
    x = 6,020.76

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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.