Home / 6,319.96-8,722.44-4,557.40

Finding the Fourth Proportional to 6,319.96, 8,722.44 and 4,557.40

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Solution

The fourth proportional to 6,319.96, 8,722.44 and 4,557.40 is: 6,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.96 : 8,722.44 = 4,557.40 : x
  2. Step 2: Convert to fraction form
    6,319.96/8,722.44 = 4,557.40/x
  3. Step 3: Cross multiply
    6,319.96x = 8,722.44 × 4,557.40
  4. Step 4: Simplify right side
    6,319.96x = 39,751,648.06
  5. Step 5: Solve for x
    x = 39,751,648.06/6,319.96
  6. Step 6: Final answer
    x = 6,289.86

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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.