Home / 2,918.16-4,026.31-1,738.40

Finding the Fourth Proportional to 2,918.16, 4,026.31 and 1,738.40

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Solution

The fourth proportional to 2,918.16, 4,026.31 and 1,738.40 is: 2,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.16 : 4,026.31 = 1,738.40 : x
  2. Step 2: Convert to fraction form
    2,918.16/4,026.31 = 1,738.40/x
  3. Step 3: Cross multiply
    2,918.16x = 4,026.31 × 1,738.40
  4. Step 4: Simplify right side
    2,918.16x = 6,999,312.83
  5. Step 5: Solve for x
    x = 6,999,312.83/2,918.16
  6. Step 6: Final answer
    x = 2,398.54

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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.