Home / 2,812.53-3,881.76-1,634.28

Finding the Fourth Proportional to 2,812.53, 3,881.76 and 1,634.28

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Solution

The fourth proportional to 2,812.53, 3,881.76 and 1,634.28 is: 2,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.53 : 3,881.76 = 1,634.28 : x
  2. Step 2: Convert to fraction form
    2,812.53/3,881.76 = 1,634.28/x
  3. Step 3: Cross multiply
    2,812.53x = 3,881.76 × 1,634.28
  4. Step 4: Simplify right side
    2,812.53x = 6,343,886.82
  5. Step 5: Solve for x
    x = 6,343,886.82/2,812.53
  6. Step 6: Final answer
    x = 2,255.58

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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.