Home / 4,389.40-6,584.10-4,219.30

Finding the Fourth Proportional to 4,389.40, 6,584.10 and 4,219.30

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Solution

The fourth proportional to 4,389.40, 6,584.10 and 4,219.30 is: 6,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.40 : 6,584.10 = 4,219.30 : x
  2. Step 2: Convert to fraction form
    4,389.40/6,584.10 = 4,219.30/x
  3. Step 3: Cross multiply
    4,389.40x = 6,584.10 × 4,219.30
  4. Step 4: Simplify right side
    4,389.40x = 27,780,293.13
  5. Step 5: Solve for x
    x = 27,780,293.13/4,389.40
  6. Step 6: Final answer
    x = 6,328.95

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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.