Home / 5,679.60-8,499.96-4,707.60

Finding the Fourth Proportional to 5,679.60, 8,499.96 and 4,707.60

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Solution

The fourth proportional to 5,679.60, 8,499.96 and 4,707.60 is: 7,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.60 : 8,499.96 = 4,707.60 : x
  2. Step 2: Convert to fraction form
    5,679.60/8,499.96 = 4,707.60/x
  3. Step 3: Cross multiply
    5,679.60x = 8,499.96 × 4,707.60
  4. Step 4: Simplify right side
    5,679.60x = 40,014,411.70
  5. Step 5: Solve for x
    x = 40,014,411.70/5,679.60
  6. Step 6: Final answer
    x = 7,045.29

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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.