Home / 7,378.77-11,070.12-3,219.11

Finding the Fourth Proportional to 7,378.77, 11,070.12 and 3,219.11

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Solution

The fourth proportional to 7,378.77, 11,070.12 and 3,219.11 is: 4,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.77 : 11,070.12 = 3,219.11 : x
  2. Step 2: Convert to fraction form
    7,378.77/11,070.12 = 3,219.11/x
  3. Step 3: Cross multiply
    7,378.77x = 11,070.12 × 3,219.11
  4. Step 4: Simplify right side
    7,378.77x = 35,635,933.99
  5. Step 5: Solve for x
    x = 35,635,933.99/7,378.77
  6. Step 6: Final answer
    x = 4,829.52

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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.