Home / 2,230.36-3,077.94-1,298.68

Finding the Fourth Proportional to 2,230.36, 3,077.94 and 1,298.68

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Solution

The fourth proportional to 2,230.36, 3,077.94 and 1,298.68 is: 1,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.36 : 3,077.94 = 1,298.68 : x
  2. Step 2: Convert to fraction form
    2,230.36/3,077.94 = 1,298.68/x
  3. Step 3: Cross multiply
    2,230.36x = 3,077.94 × 1,298.68
  4. Step 4: Simplify right side
    2,230.36x = 3,997,259.12
  5. Step 5: Solve for x
    x = 3,997,259.12/2,230.36
  6. Step 6: Final answer
    x = 1,792.20

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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.