Home / 7,038.20-10,557.84-2,107.48

Finding the Fourth Proportional to 7,038.20, 10,557.84 and 2,107.48

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Solution

The fourth proportional to 7,038.20, 10,557.84 and 2,107.48 is: 3,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.20 : 10,557.84 = 2,107.48 : x
  2. Step 2: Convert to fraction form
    7,038.20/10,557.84 = 2,107.48/x
  3. Step 3: Cross multiply
    7,038.20x = 10,557.84 × 2,107.48
  4. Step 4: Simplify right side
    7,038.20x = 22,250,436.64
  5. Step 5: Solve for x
    x = 22,250,436.64/7,038.20
  6. Step 6: Final answer
    x = 3,161.38

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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.