Home / 4,478.56-6,184.20-3,155.20

Finding the Fourth Proportional to 4,478.56, 6,184.20 and 3,155.20

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Solution

The fourth proportional to 4,478.56, 6,184.20 and 3,155.20 is: 4,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.56 : 6,184.20 = 3,155.20 : x
  2. Step 2: Convert to fraction form
    4,478.56/6,184.20 = 3,155.20/x
  3. Step 3: Cross multiply
    4,478.56x = 6,184.20 × 3,155.20
  4. Step 4: Simplify right side
    4,478.56x = 19,512,387.84
  5. Step 5: Solve for x
    x = 19,512,387.84/4,478.56
  6. Step 6: Final answer
    x = 4,356.84

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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.