Home / 4,638.60-6,389.28-3,796.20

Finding the Fourth Proportional to 4,638.60, 6,389.28 and 3,796.20

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Solution

The fourth proportional to 4,638.60, 6,389.28 and 3,796.20 is: 5,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.60 : 6,389.28 = 3,796.20 : x
  2. Step 2: Convert to fraction form
    4,638.60/6,389.28 = 3,796.20/x
  3. Step 3: Cross multiply
    4,638.60x = 6,389.28 × 3,796.20
  4. Step 4: Simplify right side
    4,638.60x = 24,254,984.74
  5. Step 5: Solve for x
    x = 24,254,984.74/4,638.60
  6. Step 6: Final answer
    x = 5,228.95

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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.