Home / 4,120.13-6,178.45-1,586.81

Finding the Fourth Proportional to 4,120.13, 6,178.45 and 1,586.81

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Solution

The fourth proportional to 4,120.13, 6,178.45 and 1,586.81 is: 2,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.13 : 6,178.45 = 1,586.81 : x
  2. Step 2: Convert to fraction form
    4,120.13/6,178.45 = 1,586.81/x
  3. Step 3: Cross multiply
    4,120.13x = 6,178.45 × 1,586.81
  4. Step 4: Simplify right side
    4,120.13x = 9,804,026.24
  5. Step 5: Solve for x
    x = 9,804,026.24/4,120.13
  6. Step 6: Final answer
    x = 2,379.54

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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.