Home / 5,384.10-8,073.71-1,921.44

Finding the Fourth Proportional to 5,384.10, 8,073.71 and 1,921.44

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Solution

The fourth proportional to 5,384.10, 8,073.71 and 1,921.44 is: 2,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.10 : 8,073.71 = 1,921.44 : x
  2. Step 2: Convert to fraction form
    5,384.10/8,073.71 = 1,921.44/x
  3. Step 3: Cross multiply
    5,384.10x = 8,073.71 × 1,921.44
  4. Step 4: Simplify right side
    5,384.10x = 15,513,139.74
  5. Step 5: Solve for x
    x = 15,513,139.74/5,384.10
  6. Step 6: Final answer
    x = 2,881.29

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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.