Home / 2,918.00-4,374.63-1,991.22

Finding the Fourth Proportional to 2,918.00, 4,374.63 and 1,991.22

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Solution

The fourth proportional to 2,918.00, 4,374.63 and 1,991.22 is: 2,985.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.00 : 4,374.63 = 1,991.22 : x
  2. Step 2: Convert to fraction form
    2,918.00/4,374.63 = 1,991.22/x
  3. Step 3: Cross multiply
    2,918.00x = 4,374.63 × 1,991.22
  4. Step 4: Simplify right side
    2,918.00x = 8,710,850.75
  5. Step 5: Solve for x
    x = 8,710,850.75/2,918.00
  6. Step 6: Final answer
    x = 2,985.22

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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.