Home / 2,340.81-3,230.43-1,292.94

Finding the Fourth Proportional to 2,340.81, 3,230.43 and 1,292.94

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Solution

The fourth proportional to 2,340.81, 3,230.43 and 1,292.94 is: 1,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.81 : 3,230.43 = 1,292.94 : x
  2. Step 2: Convert to fraction form
    2,340.81/3,230.43 = 1,292.94/x
  3. Step 3: Cross multiply
    2,340.81x = 3,230.43 × 1,292.94
  4. Step 4: Simplify right side
    2,340.81x = 4,176,752.16
  5. Step 5: Solve for x
    x = 4,176,752.16/2,340.81
  6. Step 6: Final answer
    x = 1,784.32

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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.