Home / 7,072.30-9,759.03-4,089.08

Finding the Fourth Proportional to 7,072.30, 9,759.03 and 4,089.08

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Solution

The fourth proportional to 7,072.30, 9,759.03 and 4,089.08 is: 5,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.30 : 9,759.03 = 4,089.08 : x
  2. Step 2: Convert to fraction form
    7,072.30/9,759.03 = 4,089.08/x
  3. Step 3: Cross multiply
    7,072.30x = 9,759.03 × 4,089.08
  4. Step 4: Simplify right side
    7,072.30x = 39,905,454.39
  5. Step 5: Solve for x
    x = 39,905,454.39/7,072.30
  6. Step 6: Final answer
    x = 5,642.50

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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.