Home / 7,712.71-10,643.55-4,175.93

Finding the Fourth Proportional to 7,712.71, 10,643.55 and 4,175.93

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Solution

The fourth proportional to 7,712.71, 10,643.55 and 4,175.93 is: 5,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.71 : 10,643.55 = 4,175.93 : x
  2. Step 2: Convert to fraction form
    7,712.71/10,643.55 = 4,175.93/x
  3. Step 3: Cross multiply
    7,712.71x = 10,643.55 × 4,175.93
  4. Step 4: Simplify right side
    7,712.71x = 44,446,682.70
  5. Step 5: Solve for x
    x = 44,446,682.70/7,712.71
  6. Step 6: Final answer
    x = 5,762.78

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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.