Home / 4,278.20-6,412.02-3,038.90

Finding the Fourth Proportional to 4,278.20, 6,412.02 and 3,038.90

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Solution

The fourth proportional to 4,278.20, 6,412.02 and 3,038.90 is: 4,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.20 : 6,412.02 = 3,038.90 : x
  2. Step 2: Convert to fraction form
    4,278.20/6,412.02 = 3,038.90/x
  3. Step 3: Cross multiply
    4,278.20x = 6,412.02 × 3,038.90
  4. Step 4: Simplify right side
    4,278.20x = 19,485,487.58
  5. Step 5: Solve for x
    x = 19,485,487.58/4,278.20
  6. Step 6: Final answer
    x = 4,554.60

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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.