Home / 2,918.13-4,373.35-1,185.81

Finding the Fourth Proportional to 2,918.13, 4,373.35 and 1,185.81

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Solution

The fourth proportional to 2,918.13, 4,373.35 and 1,185.81 is: 1,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.13 : 4,373.35 = 1,185.81 : x
  2. Step 2: Convert to fraction form
    2,918.13/4,373.35 = 1,185.81/x
  3. Step 3: Cross multiply
    2,918.13x = 4,373.35 × 1,185.81
  4. Step 4: Simplify right side
    2,918.13x = 5,185,962.16
  5. Step 5: Solve for x
    x = 5,185,962.16/2,918.13
  6. Step 6: Final answer
    x = 1,777.15

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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.