Home / 2,917.40-4,026.12-1,738.60

Finding the Fourth Proportional to 2,917.40, 4,026.12 and 1,738.60

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Solution

The fourth proportional to 2,917.40, 4,026.12 and 1,738.60 is: 2,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.40 : 4,026.12 = 1,738.60 : x
  2. Step 2: Convert to fraction form
    2,917.40/4,026.12 = 1,738.60/x
  3. Step 3: Cross multiply
    2,917.40x = 4,026.12 × 1,738.60
  4. Step 4: Simplify right side
    2,917.40x = 6,999,812.23
  5. Step 5: Solve for x
    x = 6,999,812.23/2,917.40
  6. Step 6: Final answer
    x = 2,399.33

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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.