Home / 7,019.40-9,688.64-4,035.56

Finding the Fourth Proportional to 7,019.40, 9,688.64 and 4,035.56

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Solution

The fourth proportional to 7,019.40, 9,688.64 and 4,035.56 is: 5,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.40 : 9,688.64 = 4,035.56 : x
  2. Step 2: Convert to fraction form
    7,019.40/9,688.64 = 4,035.56/x
  3. Step 3: Cross multiply
    7,019.40x = 9,688.64 × 4,035.56
  4. Step 4: Simplify right side
    7,019.40x = 39,099,092.08
  5. Step 5: Solve for x
    x = 39,099,092.08/7,019.40
  6. Step 6: Final answer
    x = 5,570.15

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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.