Home / 7,102.12-9,801.70-4,307.56

Finding the Fourth Proportional to 7,102.12, 9,801.70 and 4,307.56

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Solution

The fourth proportional to 7,102.12, 9,801.70 and 4,307.56 is: 5,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.12 : 9,801.70 = 4,307.56 : x
  2. Step 2: Convert to fraction form
    7,102.12/9,801.70 = 4,307.56/x
  3. Step 3: Cross multiply
    7,102.12x = 9,801.70 × 4,307.56
  4. Step 4: Simplify right side
    7,102.12x = 42,221,410.85
  5. Step 5: Solve for x
    x = 42,221,410.85/7,102.12
  6. Step 6: Final answer
    x = 5,944.90

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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.