Home / 3,012.06-4,155.68-1,685.51

Finding the Fourth Proportional to 3,012.06, 4,155.68 and 1,685.51

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Solution

The fourth proportional to 3,012.06, 4,155.68 and 1,685.51 is: 2,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.06 : 4,155.68 = 1,685.51 : x
  2. Step 2: Convert to fraction form
    3,012.06/4,155.68 = 1,685.51/x
  3. Step 3: Cross multiply
    3,012.06x = 4,155.68 × 1,685.51
  4. Step 4: Simplify right side
    3,012.06x = 7,004,440.20
  5. Step 5: Solve for x
    x = 7,004,440.20/3,012.06
  6. Step 6: Final answer
    x = 2,325.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.