Home / 7,019.20-9,686.49-4,035.62

Finding the Fourth Proportional to 7,019.20, 9,686.49 and 4,035.62

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Solution

The fourth proportional to 7,019.20, 9,686.49 and 4,035.62 is: 5,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.20 : 9,686.49 = 4,035.62 : x
  2. Step 2: Convert to fraction form
    7,019.20/9,686.49 = 4,035.62/x
  3. Step 3: Cross multiply
    7,019.20x = 9,686.49 × 4,035.62
  4. Step 4: Simplify right side
    7,019.20x = 39,090,944.34
  5. Step 5: Solve for x
    x = 39,090,944.34/7,019.20
  6. Step 6: Final answer
    x = 5,569.15

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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.