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Finding the Fourth Proportional to 2,903.51, 4,361.21 and 1,917.77

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Solution

The fourth proportional to 2,903.51, 4,361.21 and 1,917.77 is: 2,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.51 : 4,361.21 = 1,917.77 : x
  2. Step 2: Convert to fraction form
    2,903.51/4,361.21 = 1,917.77/x
  3. Step 3: Cross multiply
    2,903.51x = 4,361.21 × 1,917.77
  4. Step 4: Simplify right side
    2,903.51x = 8,363,797.70
  5. Step 5: Solve for x
    x = 8,363,797.70/2,903.51
  6. Step 6: Final answer
    x = 2,880.58

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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.