Home / 7,759.90-11,642.97-3,545.15

Finding the Fourth Proportional to 7,759.90, 11,642.97 and 3,545.15

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Solution

The fourth proportional to 7,759.90, 11,642.97 and 3,545.15 is: 5,319.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.90 : 11,642.97 = 3,545.15 : x
  2. Step 2: Convert to fraction form
    7,759.90/11,642.97 = 3,545.15/x
  3. Step 3: Cross multiply
    7,759.90x = 11,642.97 × 3,545.15
  4. Step 4: Simplify right side
    7,759.90x = 41,276,075.10
  5. Step 5: Solve for x
    x = 41,276,075.10/7,759.90
  6. Step 6: Final answer
    x = 5,319.15

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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.