Home / 7,098.80-9,795.48-3,953.84

Finding the Fourth Proportional to 7,098.80, 9,795.48 and 3,953.84

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Solution

The fourth proportional to 7,098.80, 9,795.48 and 3,953.84 is: 5,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.80 : 9,795.48 = 3,953.84 : x
  2. Step 2: Convert to fraction form
    7,098.80/9,795.48 = 3,953.84/x
  3. Step 3: Cross multiply
    7,098.80x = 9,795.48 × 3,953.84
  4. Step 4: Simplify right side
    7,098.80x = 38,729,760.64
  5. Step 5: Solve for x
    x = 38,729,760.64/7,098.80
  6. Step 6: Final answer
    x = 5,455.82

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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.