Home / 3,206.86-4,810.82-1,126.32

Finding the Fourth Proportional to 3,206.86, 4,810.82 and 1,126.32

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Solution

The fourth proportional to 3,206.86, 4,810.82 and 1,126.32 is: 1,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.86 : 4,810.82 = 1,126.32 : x
  2. Step 2: Convert to fraction form
    3,206.86/4,810.82 = 1,126.32/x
  3. Step 3: Cross multiply
    3,206.86x = 4,810.82 × 1,126.32
  4. Step 4: Simplify right side
    3,206.86x = 5,418,526.17
  5. Step 5: Solve for x
    x = 5,418,526.17/3,206.86
  6. Step 6: Final answer
    x = 1,689.67

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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.