Home / 3,120.06-4,679.08-1,039.51

Finding the Fourth Proportional to 3,120.06, 4,679.08 and 1,039.51

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Solution

The fourth proportional to 3,120.06, 4,679.08 and 1,039.51 is: 1,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.06 : 4,679.08 = 1,039.51 : x
  2. Step 2: Convert to fraction form
    3,120.06/4,679.08 = 1,039.51/x
  3. Step 3: Cross multiply
    3,120.06x = 4,679.08 × 1,039.51
  4. Step 4: Simplify right side
    3,120.06x = 4,863,950.45
  5. Step 5: Solve for x
    x = 4,863,950.45/3,120.06
  6. Step 6: Final answer
    x = 1,558.93

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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.