Home / 3,127.78-4,316.36-1,801.47

Finding the Fourth Proportional to 3,127.78, 4,316.36 and 1,801.47

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Solution

The fourth proportional to 3,127.78, 4,316.36 and 1,801.47 is: 2,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.78 : 4,316.36 = 1,801.47 : x
  2. Step 2: Convert to fraction form
    3,127.78/4,316.36 = 1,801.47/x
  3. Step 3: Cross multiply
    3,127.78x = 4,316.36 × 1,801.47
  4. Step 4: Simplify right side
    3,127.78x = 7,775,800.23
  5. Step 5: Solve for x
    x = 7,775,800.23/3,127.78
  6. Step 6: Final answer
    x = 2,486.04

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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.