Home / 6,439.74-8,876.28-4,314.54

Finding the Fourth Proportional to 6,439.74, 8,876.28 and 4,314.54

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Solution

The fourth proportional to 6,439.74, 8,876.28 and 4,314.54 is: 5,946.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.74 : 8,876.28 = 4,314.54 : x
  2. Step 2: Convert to fraction form
    6,439.74/8,876.28 = 4,314.54/x
  3. Step 3: Cross multiply
    6,439.74x = 8,876.28 × 4,314.54
  4. Step 4: Simplify right side
    6,439.74x = 38,297,065.11
  5. Step 5: Solve for x
    x = 38,297,065.11/6,439.74
  6. Step 6: Final answer
    x = 5,946.99

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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.