Home / 7,179.04-10,767.60-1,985.44

Finding the Fourth Proportional to 7,179.04, 10,767.60 and 1,985.44

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Solution

The fourth proportional to 7,179.04, 10,767.60 and 1,985.44 is: 2,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.04 : 10,767.60 = 1,985.44 : x
  2. Step 2: Convert to fraction form
    7,179.04/10,767.60 = 1,985.44/x
  3. Step 3: Cross multiply
    7,179.04x = 10,767.60 × 1,985.44
  4. Step 4: Simplify right side
    7,179.04x = 21,378,423.74
  5. Step 5: Solve for x
    x = 21,378,423.74/7,179.04
  6. Step 6: Final answer
    x = 2,977.89

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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.