Home / 7,211.06-9,949.55-4,378.36

Finding the Fourth Proportional to 7,211.06, 9,949.55 and 4,378.36

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Solution

The fourth proportional to 7,211.06, 9,949.55 and 4,378.36 is: 6,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.06 : 9,949.55 = 4,378.36 : x
  2. Step 2: Convert to fraction form
    7,211.06/9,949.55 = 4,378.36/x
  3. Step 3: Cross multiply
    7,211.06x = 9,949.55 × 4,378.36
  4. Step 4: Simplify right side
    7,211.06x = 43,562,711.74
  5. Step 5: Solve for x
    x = 43,562,711.74/7,211.06
  6. Step 6: Final answer
    x = 6,041.10

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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.