Home / 7,868.16-10,857.98-4,331.30

Finding the Fourth Proportional to 7,868.16, 10,857.98 and 4,331.30

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Solution

The fourth proportional to 7,868.16, 10,857.98 and 4,331.30 is: 5,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.16 : 10,857.98 = 4,331.30 : x
  2. Step 2: Convert to fraction form
    7,868.16/10,857.98 = 4,331.30/x
  3. Step 3: Cross multiply
    7,868.16x = 10,857.98 × 4,331.30
  4. Step 4: Simplify right side
    7,868.16x = 47,029,168.77
  5. Step 5: Solve for x
    x = 47,029,168.77/7,868.16
  6. Step 6: Final answer
    x = 5,977.15

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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.