Home / 2,116.70-2,917.94-1,485.32

Finding the Fourth Proportional to 2,116.70, 2,917.94 and 1,485.32

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Solution

The fourth proportional to 2,116.70, 2,917.94 and 1,485.32 is: 2,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.70 : 2,917.94 = 1,485.32 : x
  2. Step 2: Convert to fraction form
    2,116.70/2,917.94 = 1,485.32/x
  3. Step 3: Cross multiply
    2,116.70x = 2,917.94 × 1,485.32
  4. Step 4: Simplify right side
    2,116.70x = 4,334,074.64
  5. Step 5: Solve for x
    x = 4,334,074.64/2,116.70
  6. Step 6: Final answer
    x = 2,047.56

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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.