Home / 5,611.84-8,419.32-4,999.78

Finding the Fourth Proportional to 5,611.84, 8,419.32 and 4,999.78

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Solution

The fourth proportional to 5,611.84, 8,419.32 and 4,999.78 is: 7,501.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.84 : 8,419.32 = 4,999.78 : x
  2. Step 2: Convert to fraction form
    5,611.84/8,419.32 = 4,999.78/x
  3. Step 3: Cross multiply
    5,611.84x = 8,419.32 × 4,999.78
  4. Step 4: Simplify right side
    5,611.84x = 42,094,747.75
  5. Step 5: Solve for x
    x = 42,094,747.75/5,611.84
  6. Step 6: Final answer
    x = 7,501.06

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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.