Home / 7,022.12-9,689.48-4,038.08

Finding the Fourth Proportional to 7,022.12, 9,689.48 and 4,038.08

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Solution

The fourth proportional to 7,022.12, 9,689.48 and 4,038.08 is: 5,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.12 : 9,689.48 = 4,038.08 : x
  2. Step 2: Convert to fraction form
    7,022.12/9,689.48 = 4,038.08/x
  3. Step 3: Cross multiply
    7,022.12x = 9,689.48 × 4,038.08
  4. Step 4: Simplify right side
    7,022.12x = 39,126,895.40
  5. Step 5: Solve for x
    x = 39,126,895.40/7,022.12
  6. Step 6: Final answer
    x = 5,571.95

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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.