Home / 3,018.70-4,166.14-2,312.38

Finding the Fourth Proportional to 3,018.70, 4,166.14 and 2,312.38

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Solution

The fourth proportional to 3,018.70, 4,166.14 and 2,312.38 is: 3,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.70 : 4,166.14 = 2,312.38 : x
  2. Step 2: Convert to fraction form
    3,018.70/4,166.14 = 2,312.38/x
  3. Step 3: Cross multiply
    3,018.70x = 4,166.14 × 2,312.38
  4. Step 4: Simplify right side
    3,018.70x = 9,633,698.81
  5. Step 5: Solve for x
    x = 9,633,698.81/3,018.70
  6. Step 6: Final answer
    x = 3,191.34

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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.