Home / 6,720.84-10,079.90-4,220.91

Finding the Fourth Proportional to 6,720.84, 10,079.90 and 4,220.91

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Solution

The fourth proportional to 6,720.84, 10,079.90 and 4,220.91 is: 6,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.84 : 10,079.90 = 4,220.91 : x
  2. Step 2: Convert to fraction form
    6,720.84/10,079.90 = 4,220.91/x
  3. Step 3: Cross multiply
    6,720.84x = 10,079.90 × 4,220.91
  4. Step 4: Simplify right side
    6,720.84x = 42,546,350.71
  5. Step 5: Solve for x
    x = 42,546,350.71/6,720.84
  6. Step 6: Final answer
    x = 6,330.51

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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.