Home / 7,328.75-10,986.55-2,647.65

Finding the Fourth Proportional to 7,328.75, 10,986.55 and 2,647.65

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Solution

The fourth proportional to 7,328.75, 10,986.55 and 2,647.65 is: 3,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.75 : 10,986.55 = 2,647.65 : x
  2. Step 2: Convert to fraction form
    7,328.75/10,986.55 = 2,647.65/x
  3. Step 3: Cross multiply
    7,328.75x = 10,986.55 × 2,647.65
  4. Step 4: Simplify right side
    7,328.75x = 29,088,532.49
  5. Step 5: Solve for x
    x = 29,088,532.49/7,328.75
  6. Step 6: Final answer
    x = 3,969.10

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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.