Home / 2,135.08-2,946.80-1,349.56

Finding the Fourth Proportional to 2,135.08, 2,946.80 and 1,349.56

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Solution

The fourth proportional to 2,135.08, 2,946.80 and 1,349.56 is: 1,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.08 : 2,946.80 = 1,349.56 : x
  2. Step 2: Convert to fraction form
    2,135.08/2,946.80 = 1,349.56/x
  3. Step 3: Cross multiply
    2,135.08x = 2,946.80 × 1,349.56
  4. Step 4: Simplify right side
    2,135.08x = 3,976,883.41
  5. Step 5: Solve for x
    x = 3,976,883.41/2,135.08
  6. Step 6: Final answer
    x = 1,862.64

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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.