Home / 7,712.85-10,643.69-4,175.99

Finding the Fourth Proportional to 7,712.85, 10,643.69 and 4,175.99

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Solution

The fourth proportional to 7,712.85, 10,643.69 and 4,175.99 is: 5,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.85 : 10,643.69 = 4,175.99 : x
  2. Step 2: Convert to fraction form
    7,712.85/10,643.69 = 4,175.99/x
  3. Step 3: Cross multiply
    7,712.85x = 10,643.69 × 4,175.99
  4. Step 4: Simplify right side
    7,712.85x = 44,447,868.90
  5. Step 5: Solve for x
    x = 44,447,868.90/7,712.85
  6. Step 6: Final answer
    x = 5,762.83

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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.