Home / 7,038.03-10,556.43-2,108.78

Finding the Fourth Proportional to 7,038.03, 10,556.43 and 2,108.78

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Solution

The fourth proportional to 7,038.03, 10,556.43 and 2,108.78 is: 3,162.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.03 : 10,556.43 = 2,108.78 : x
  2. Step 2: Convert to fraction form
    7,038.03/10,556.43 = 2,108.78/x
  3. Step 3: Cross multiply
    7,038.03x = 10,556.43 × 2,108.78
  4. Step 4: Simplify right side
    7,038.03x = 22,261,135.67
  5. Step 5: Solve for x
    x = 22,261,135.67/7,038.03
  6. Step 6: Final answer
    x = 3,162.98

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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.