Home / 7,154.48-10,731.60-1,960.35

Finding the Fourth Proportional to 7,154.48, 10,731.60 and 1,960.35

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Solution

The fourth proportional to 7,154.48, 10,731.60 and 1,960.35 is: 2,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.48 : 10,731.60 = 1,960.35 : x
  2. Step 2: Convert to fraction form
    7,154.48/10,731.60 = 1,960.35/x
  3. Step 3: Cross multiply
    7,154.48x = 10,731.60 × 1,960.35
  4. Step 4: Simplify right side
    7,154.48x = 21,037,714.94
  5. Step 5: Solve for x
    x = 21,037,714.94/7,154.48
  6. Step 6: Final answer
    x = 2,940.50

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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.