Home / 7,868.30-10,858.20-4,331.52

Finding the Fourth Proportional to 7,868.30, 10,858.20 and 4,331.52

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Solution

The fourth proportional to 7,868.30, 10,858.20 and 4,331.52 is: 5,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.30 : 10,858.20 = 4,331.52 : x
  2. Step 2: Convert to fraction form
    7,868.30/10,858.20 = 4,331.52/x
  3. Step 3: Cross multiply
    7,868.30x = 10,858.20 × 4,331.52
  4. Step 4: Simplify right side
    7,868.30x = 47,032,510.46
  5. Step 5: Solve for x
    x = 47,032,510.46/7,868.30
  6. Step 6: Final answer
    x = 5,977.47

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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.