Home / 4,399.40-6,598.19-1,278.74

Finding the Fourth Proportional to 4,399.40, 6,598.19 and 1,278.74

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Solution

The fourth proportional to 4,399.40, 6,598.19 and 1,278.74 is: 1,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.40 : 6,598.19 = 1,278.74 : x
  2. Step 2: Convert to fraction form
    4,399.40/6,598.19 = 1,278.74/x
  3. Step 3: Cross multiply
    4,399.40x = 6,598.19 × 1,278.74
  4. Step 4: Simplify right side
    4,399.40x = 8,437,389.17
  5. Step 5: Solve for x
    x = 8,437,389.17/4,399.40
  6. Step 6: Final answer
    x = 1,917.85

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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.