Home / 5,042.21-7,558.43-1,921.28

Finding the Fourth Proportional to 5,042.21, 7,558.43 and 1,921.28

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Solution

The fourth proportional to 5,042.21, 7,558.43 and 1,921.28 is: 2,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042.21 : 7,558.43 = 1,921.28 : x
  2. Step 2: Convert to fraction form
    5,042.21/7,558.43 = 1,921.28/x
  3. Step 3: Cross multiply
    5,042.21x = 7,558.43 × 1,921.28
  4. Step 4: Simplify right side
    5,042.21x = 14,521,812.99
  5. Step 5: Solve for x
    x = 14,521,812.99/5,042.21
  6. Step 6: Final answer
    x = 2,880.05

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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.