Home / 5,378.59-8,064.91-1,679.32

Finding the Fourth Proportional to 5,378.59, 8,064.91 and 1,679.32

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Solution

The fourth proportional to 5,378.59, 8,064.91 and 1,679.32 is: 2,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.59 : 8,064.91 = 1,679.32 : x
  2. Step 2: Convert to fraction form
    5,378.59/8,064.91 = 1,679.32/x
  3. Step 3: Cross multiply
    5,378.59x = 8,064.91 × 1,679.32
  4. Step 4: Simplify right side
    5,378.59x = 13,543,564.66
  5. Step 5: Solve for x
    x = 13,543,564.66/5,378.59
  6. Step 6: Final answer
    x = 2,518.05

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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.