Home / 3,749.52-5,178.93-2,809.52

Finding the Fourth Proportional to 3,749.52, 5,178.93 and 2,809.52

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Solution

The fourth proportional to 3,749.52, 5,178.93 and 2,809.52 is: 3,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.52 : 5,178.93 = 2,809.52 : x
  2. Step 2: Convert to fraction form
    3,749.52/5,178.93 = 2,809.52/x
  3. Step 3: Cross multiply
    3,749.52x = 5,178.93 × 2,809.52
  4. Step 4: Simplify right side
    3,749.52x = 14,550,281.52
  5. Step 5: Solve for x
    x = 14,550,281.52/3,749.52
  6. Step 6: Final answer
    x = 3,880.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.