Home / 2,260.18-3,112.26-2,128.66

Finding the Fourth Proportional to 2,260.18, 3,112.26 and 2,128.66

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Solution

The fourth proportional to 2,260.18, 3,112.26 and 2,128.66 is: 2,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.18 : 3,112.26 = 2,128.66 : x
  2. Step 2: Convert to fraction form
    2,260.18/3,112.26 = 2,128.66/x
  3. Step 3: Cross multiply
    2,260.18x = 3,112.26 × 2,128.66
  4. Step 4: Simplify right side
    2,260.18x = 6,624,943.37
  5. Step 5: Solve for x
    x = 6,624,943.37/2,260.18
  6. Step 6: Final answer
    x = 2,931.16

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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.