Home / 6,320.17-8,720.09-4,082.14

Finding the Fourth Proportional to 6,320.17, 8,720.09 and 4,082.14

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Solution

The fourth proportional to 6,320.17, 8,720.09 and 4,082.14 is: 5,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.17 : 8,720.09 = 4,082.14 : x
  2. Step 2: Convert to fraction form
    6,320.17/8,720.09 = 4,082.14/x
  3. Step 3: Cross multiply
    6,320.17x = 8,720.09 × 4,082.14
  4. Step 4: Simplify right side
    6,320.17x = 35,596,607.78
  5. Step 5: Solve for x
    x = 35,596,607.78/6,320.17
  6. Step 6: Final answer
    x = 5,632.22

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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.