Home / 3,015.06-4,160.36-1,688.82

Finding the Fourth Proportional to 3,015.06, 4,160.36 and 1,688.82

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Solution

The fourth proportional to 3,015.06, 4,160.36 and 1,688.82 is: 2,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.06 : 4,160.36 = 1,688.82 : x
  2. Step 2: Convert to fraction form
    3,015.06/4,160.36 = 1,688.82/x
  3. Step 3: Cross multiply
    3,015.06x = 4,160.36 × 1,688.82
  4. Step 4: Simplify right side
    3,015.06x = 7,026,099.18
  5. Step 5: Solve for x
    x = 7,026,099.18/3,015.06
  6. Step 6: Final answer
    x = 2,330.33

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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.