Home / 3,652.12-5,477.64-1,311.76

Finding the Fourth Proportional to 3,652.12, 5,477.64 and 1,311.76

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Solution

The fourth proportional to 3,652.12, 5,477.64 and 1,311.76 is: 1,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.12 : 5,477.64 = 1,311.76 : x
  2. Step 2: Convert to fraction form
    3,652.12/5,477.64 = 1,311.76/x
  3. Step 3: Cross multiply
    3,652.12x = 5,477.64 × 1,311.76
  4. Step 4: Simplify right side
    3,652.12x = 7,185,349.05
  5. Step 5: Solve for x
    x = 7,185,349.05/3,652.12
  6. Step 6: Final answer
    x = 1,967.45

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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.