Home / 7,712.14-10,642.78-4,175.37

Finding the Fourth Proportional to 7,712.14, 10,642.78 and 4,175.37

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Solution

The fourth proportional to 7,712.14, 10,642.78 and 4,175.37 is: 5,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.14 : 10,642.78 = 4,175.37 : x
  2. Step 2: Convert to fraction form
    7,712.14/10,642.78 = 4,175.37/x
  3. Step 3: Cross multiply
    7,712.14x = 10,642.78 × 4,175.37
  4. Step 4: Simplify right side
    7,712.14x = 44,437,491.11
  5. Step 5: Solve for x
    x = 44,437,491.11/7,712.14
  6. Step 6: Final answer
    x = 5,762.02

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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.