Home / 7,868.52-10,858.59-4,331.79

Finding the Fourth Proportional to 7,868.52, 10,858.59 and 4,331.79

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Solution

The fourth proportional to 7,868.52, 10,858.59 and 4,331.79 is: 5,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.52 : 10,858.59 = 4,331.79 : x
  2. Step 2: Convert to fraction form
    7,868.52/10,858.59 = 4,331.79/x
  3. Step 3: Cross multiply
    7,868.52x = 10,858.59 × 4,331.79
  4. Step 4: Simplify right side
    7,868.52x = 47,037,131.58
  5. Step 5: Solve for x
    x = 47,037,131.58/7,868.52
  6. Step 6: Final answer
    x = 5,977.89

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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.