Home / 5,618.36-8,427.24-1,722.78

Finding the Fourth Proportional to 5,618.36, 8,427.24 and 1,722.78

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Solution

The fourth proportional to 5,618.36, 8,427.24 and 1,722.78 is: 2,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.36 : 8,427.24 = 1,722.78 : x
  2. Step 2: Convert to fraction form
    5,618.36/8,427.24 = 1,722.78/x
  3. Step 3: Cross multiply
    5,618.36x = 8,427.24 × 1,722.78
  4. Step 4: Simplify right side
    5,618.36x = 14,518,280.53
  5. Step 5: Solve for x
    x = 14,518,280.53/5,618.36
  6. Step 6: Final answer
    x = 2,584.08

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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.