Home / 2,918-4,026.80-1,739.12

Finding the Fourth Proportional to 2,918, 4,026.80 and 1,739.12

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Solution

The fourth proportional to 2,918, 4,026.80 and 1,739.12 is: 2,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918 : 4,026.80 = 1,739.12 : x
  2. Step 2: Convert to fraction form
    2,918/4,026.80 = 1,739.12/x
  3. Step 3: Cross multiply
    2,918x = 4,026.80 × 1,739.12
  4. Step 4: Simplify right side
    2,918x = 7,003,088.42
  5. Step 5: Solve for x
    x = 7,003,088.42/2,918
  6. Step 6: Final answer
    x = 2,399.96

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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.