Home / 9,119.56-13,681.46-2,880.19

Finding the Fourth Proportional to 9,119.56, 13,681.46 and 2,880.19

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Solution

The fourth proportional to 9,119.56, 13,681.46 and 2,880.19 is: 4,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.56 : 13,681.46 = 2,880.19 : x
  2. Step 2: Convert to fraction form
    9,119.56/13,681.46 = 2,880.19/x
  3. Step 3: Cross multiply
    9,119.56x = 13,681.46 × 2,880.19
  4. Step 4: Simplify right side
    9,119.56x = 39,405,189.88
  5. Step 5: Solve for x
    x = 39,405,189.88/9,119.56
  6. Step 6: Final answer
    x = 4,320.95

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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.