Home / 7,153.50-10,731.63-3,458.28

Finding the Fourth Proportional to 7,153.50, 10,731.63 and 3,458.28

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Solution

The fourth proportional to 7,153.50, 10,731.63 and 3,458.28 is: 5,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.50 : 10,731.63 = 3,458.28 : x
  2. Step 2: Convert to fraction form
    7,153.50/10,731.63 = 3,458.28/x
  3. Step 3: Cross multiply
    7,153.50x = 10,731.63 × 3,458.28
  4. Step 4: Simplify right side
    7,153.50x = 37,112,981.40
  5. Step 5: Solve for x
    x = 37,112,981.40/7,153.50
  6. Step 6: Final answer
    x = 5,188.09

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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.