Home / 2,153.56-2,971.65-1,314.73

Finding the Fourth Proportional to 2,153.56, 2,971.65 and 1,314.73

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Solution

The fourth proportional to 2,153.56, 2,971.65 and 1,314.73 is: 1,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.56 : 2,971.65 = 1,314.73 : x
  2. Step 2: Convert to fraction form
    2,153.56/2,971.65 = 1,314.73/x
  3. Step 3: Cross multiply
    2,153.56x = 2,971.65 × 1,314.73
  4. Step 4: Simplify right side
    2,153.56x = 3,906,917.40
  5. Step 5: Solve for x
    x = 3,906,917.40/2,153.56
  6. Step 6: Final answer
    x = 1,814.17

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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.