Home / 2,918.88-4,374.48-1,186.56

Finding the Fourth Proportional to 2,918.88, 4,374.48 and 1,186.56

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Solution

The fourth proportional to 2,918.88, 4,374.48 and 1,186.56 is: 1,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.88 : 4,374.48 = 1,186.56 : x
  2. Step 2: Convert to fraction form
    2,918.88/4,374.48 = 1,186.56/x
  3. Step 3: Cross multiply
    2,918.88x = 4,374.48 × 1,186.56
  4. Step 4: Simplify right side
    2,918.88x = 5,190,582.99
  5. Step 5: Solve for x
    x = 5,190,582.99/2,918.88
  6. Step 6: Final answer
    x = 1,778.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.