Home / 3,678.55-5,518.04-1,045.85

Finding the Fourth Proportional to 3,678.55, 5,518.04 and 1,045.85

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Solution

The fourth proportional to 3,678.55, 5,518.04 and 1,045.85 is: 1,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.55 : 5,518.04 = 1,045.85 : x
  2. Step 2: Convert to fraction form
    3,678.55/5,518.04 = 1,045.85/x
  3. Step 3: Cross multiply
    3,678.55x = 5,518.04 × 1,045.85
  4. Step 4: Simplify right side
    3,678.55x = 5,771,036.90
  5. Step 5: Solve for x
    x = 5,771,036.90/3,678.55
  6. Step 6: Final answer
    x = 1,568.83

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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.