Home / 3,658.10-5,483.55-1,807.70

Finding the Fourth Proportional to 3,658.10, 5,483.55 and 1,807.70

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Solution

The fourth proportional to 3,658.10, 5,483.55 and 1,807.70 is: 2,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.10 : 5,483.55 = 1,807.70 : x
  2. Step 2: Convert to fraction form
    3,658.10/5,483.55 = 1,807.70/x
  3. Step 3: Cross multiply
    3,658.10x = 5,483.55 × 1,807.70
  4. Step 4: Simplify right side
    3,658.10x = 9,912,613.34
  5. Step 5: Solve for x
    x = 9,912,613.34/3,658.10
  6. Step 6: Final answer
    x = 2,709.77

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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.