Home / 4,989.72-7,499.16-4,627.68

Finding the Fourth Proportional to 4,989.72, 7,499.16 and 4,627.68

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Solution

The fourth proportional to 4,989.72, 7,499.16 and 4,627.68 is: 6,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.72 : 7,499.16 = 4,627.68 : x
  2. Step 2: Convert to fraction form
    4,989.72/7,499.16 = 4,627.68/x
  3. Step 3: Cross multiply
    4,989.72x = 7,499.16 × 4,627.68
  4. Step 4: Simplify right side
    4,989.72x = 34,703,712.75
  5. Step 5: Solve for x
    x = 34,703,712.75/4,989.72
  6. Step 6: Final answer
    x = 6,955.04

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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.