Home / 2,925.75-4,036.32-1,917.18

Finding the Fourth Proportional to 2,925.75, 4,036.32 and 1,917.18

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Solution

The fourth proportional to 2,925.75, 4,036.32 and 1,917.18 is: 2,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.75 : 4,036.32 = 1,917.18 : x
  2. Step 2: Convert to fraction form
    2,925.75/4,036.32 = 1,917.18/x
  3. Step 3: Cross multiply
    2,925.75x = 4,036.32 × 1,917.18
  4. Step 4: Simplify right side
    2,925.75x = 7,738,351.98
  5. Step 5: Solve for x
    x = 7,738,351.98/2,925.75
  6. Step 6: Final answer
    x = 2,644.91

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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.