Home / 3,319.12-4,975.60-1,126.32

Finding the Fourth Proportional to 3,319.12, 4,975.60 and 1,126.32

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Solution

The fourth proportional to 3,319.12, 4,975.60 and 1,126.32 is: 1,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.12 : 4,975.60 = 1,126.32 : x
  2. Step 2: Convert to fraction form
    3,319.12/4,975.60 = 1,126.32/x
  3. Step 3: Cross multiply
    3,319.12x = 4,975.60 × 1,126.32
  4. Step 4: Simplify right side
    3,319.12x = 5,604,117.79
  5. Step 5: Solve for x
    x = 5,604,117.79/3,319.12
  6. Step 6: Final answer
    x = 1,688.43

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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.