Home / 2,917.40-4,026.12-1,738.58

Finding the Fourth Proportional to 2,917.40, 4,026.12 and 1,738.58

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Solution

The fourth proportional to 2,917.40, 4,026.12 and 1,738.58 is: 2,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.40 : 4,026.12 = 1,738.58 : x
  2. Step 2: Convert to fraction form
    2,917.40/4,026.12 = 1,738.58/x
  3. Step 3: Cross multiply
    2,917.40x = 4,026.12 × 1,738.58
  4. Step 4: Simplify right side
    2,917.40x = 6,999,731.71
  5. Step 5: Solve for x
    x = 6,999,731.71/2,917.40
  6. Step 6: Final answer
    x = 2,399.30

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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.