Home / 7,864.84-11,801.40-3,485.32

Finding the Fourth Proportional to 7,864.84, 11,801.40 and 3,485.32

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Solution

The fourth proportional to 7,864.84, 11,801.40 and 3,485.32 is: 5,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.84 : 11,801.40 = 3,485.32 : x
  2. Step 2: Convert to fraction form
    7,864.84/11,801.40 = 3,485.32/x
  3. Step 3: Cross multiply
    7,864.84x = 11,801.40 × 3,485.32
  4. Step 4: Simplify right side
    7,864.84x = 41,131,655.45
  5. Step 5: Solve for x
    x = 41,131,655.45/7,864.84
  6. Step 6: Final answer
    x = 5,229.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.