Home / 4,220.42-6,319.23-2,830.76

Finding the Fourth Proportional to 4,220.42, 6,319.23 and 2,830.76

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Solution

The fourth proportional to 4,220.42, 6,319.23 and 2,830.76 is: 4,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.42 : 6,319.23 = 2,830.76 : x
  2. Step 2: Convert to fraction form
    4,220.42/6,319.23 = 2,830.76/x
  3. Step 3: Cross multiply
    4,220.42x = 6,319.23 × 2,830.76
  4. Step 4: Simplify right side
    4,220.42x = 17,888,200.64
  5. Step 5: Solve for x
    x = 17,888,200.64/4,220.42
  6. Step 6: Final answer
    x = 4,238.49

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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.