Home / 2,749.95-3,795.26-1,571.40

Finding the Fourth Proportional to 2,749.95, 3,795.26 and 1,571.40

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Solution

The fourth proportional to 2,749.95, 3,795.26 and 1,571.40 is: 2,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.95 : 3,795.26 = 1,571.40 : x
  2. Step 2: Convert to fraction form
    2,749.95/3,795.26 = 1,571.40/x
  3. Step 3: Cross multiply
    2,749.95x = 3,795.26 × 1,571.40
  4. Step 4: Simplify right side
    2,749.95x = 5,963,863.71
  5. Step 5: Solve for x
    x = 5,963,863.71/2,749.95
  6. Step 6: Final answer
    x = 2,168.72

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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.