Home / 7,141.25-10,718.80-3,446.08

Finding the Fourth Proportional to 7,141.25, 10,718.80 and 3,446.08

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Solution

The fourth proportional to 7,141.25, 10,718.80 and 3,446.08 is: 5,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.25 : 10,718.80 = 3,446.08 : x
  2. Step 2: Convert to fraction form
    7,141.25/10,718.80 = 3,446.08/x
  3. Step 3: Cross multiply
    7,141.25x = 10,718.80 × 3,446.08
  4. Step 4: Simplify right side
    7,141.25x = 36,937,806.89
  5. Step 5: Solve for x
    x = 36,937,806.89/7,141.25
  6. Step 6: Final answer
    x = 5,172.45

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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.