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Finding the Fourth Proportional to 3,985.04, 5,975.12 and 1,790.76

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Solution

The fourth proportional to 3,985.04, 5,975.12 and 1,790.76 is: 2,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.04 : 5,975.12 = 1,790.76 : x
  2. Step 2: Convert to fraction form
    3,985.04/5,975.12 = 1,790.76/x
  3. Step 3: Cross multiply
    3,985.04x = 5,975.12 × 1,790.76
  4. Step 4: Simplify right side
    3,985.04x = 10,700,005.89
  5. Step 5: Solve for x
    x = 10,700,005.89/3,985.04
  6. Step 6: Final answer
    x = 2,685.04

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Similar ratio
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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.