Home / 7,868.41-10,858.32-4,331.55

Finding the Fourth Proportional to 7,868.41, 10,858.32 and 4,331.55

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Solution

The fourth proportional to 7,868.41, 10,858.32 and 4,331.55 is: 5,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.41 : 10,858.32 = 4,331.55 : x
  2. Step 2: Convert to fraction form
    7,868.41/10,858.32 = 4,331.55/x
  3. Step 3: Cross multiply
    7,868.41x = 10,858.32 × 4,331.55
  4. Step 4: Simplify right side
    7,868.41x = 47,033,356.00
  5. Step 5: Solve for x
    x = 47,033,356.00/7,868.41
  6. Step 6: Final answer
    x = 5,977.49

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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.