Home / 3,130.51-4,696.70-1,256.38

Finding the Fourth Proportional to 3,130.51, 4,696.70 and 1,256.38

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Solution

The fourth proportional to 3,130.51, 4,696.70 and 1,256.38 is: 1,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.51 : 4,696.70 = 1,256.38 : x
  2. Step 2: Convert to fraction form
    3,130.51/4,696.70 = 1,256.38/x
  3. Step 3: Cross multiply
    3,130.51x = 4,696.70 × 1,256.38
  4. Step 4: Simplify right side
    3,130.51x = 5,900,843.50
  5. Step 5: Solve for x
    x = 5,900,843.50/3,130.51
  6. Step 6: Final answer
    x = 1,884.95

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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.