Home / 2,114.48-2,918.15-1,230.23

Finding the Fourth Proportional to 2,114.48, 2,918.15 and 1,230.23

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Solution

The fourth proportional to 2,114.48, 2,918.15 and 1,230.23 is: 1,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.48 : 2,918.15 = 1,230.23 : x
  2. Step 2: Convert to fraction form
    2,114.48/2,918.15 = 1,230.23/x
  3. Step 3: Cross multiply
    2,114.48x = 2,918.15 × 1,230.23
  4. Step 4: Simplify right side
    2,114.48x = 3,589,974.93
  5. Step 5: Solve for x
    x = 3,589,974.93/2,114.48
  6. Step 6: Final answer
    x = 1,697.81

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1.5x scale

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.