Home / 7,200-9,933.60-4,366.40

Finding the Fourth Proportional to 7,200, 9,933.60 and 4,366.40

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Solution

The fourth proportional to 7,200, 9,933.60 and 4,366.40 is: 6,024.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200 : 9,933.60 = 4,366.40 : x
  2. Step 2: Convert to fraction form
    7,200/9,933.60 = 4,366.40/x
  3. Step 3: Cross multiply
    7,200x = 9,933.60 × 4,366.40
  4. Step 4: Simplify right side
    7,200x = 43,374,071.04
  5. Step 5: Solve for x
    x = 43,374,071.04/7,200
  6. Step 6: Final answer
    x = 6,024.18

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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.