Home / 1,893.47-2,613.80-1,272.83

Finding the Fourth Proportional to 1,893.47, 2,613.80 and 1,272.83

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Solution

The fourth proportional to 1,893.47, 2,613.80 and 1,272.83 is: 1,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.47 : 2,613.80 = 1,272.83 : x
  2. Step 2: Convert to fraction form
    1,893.47/2,613.80 = 1,272.83/x
  3. Step 3: Cross multiply
    1,893.47x = 2,613.80 × 1,272.83
  4. Step 4: Simplify right side
    1,893.47x = 3,326,916.69
  5. Step 5: Solve for x
    x = 3,326,916.69/1,893.47
  6. Step 6: Final answer
    x = 1,757.05

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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.