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Finding the Fourth Proportional to 2,426.94, 3,640.48 and 783.50

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Solution

The fourth proportional to 2,426.94, 3,640.48 and 783.50 is: 1,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.94 : 3,640.48 = 783.50 : x
  2. Step 2: Convert to fraction form
    2,426.94/3,640.48 = 783.50/x
  3. Step 3: Cross multiply
    2,426.94x = 3,640.48 × 783.50
  4. Step 4: Simplify right side
    2,426.94x = 2,852,295.92
  5. Step 5: Solve for x
    x = 2,852,295.92/2,426.94
  6. Step 6: Final answer
    x = 1,175.26

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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.