Home / 1,393.08-2,090.49-1,263.32

Finding the Fourth Proportional to 1,393.08, 2,090.49 and 1,263.32

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Solution

The fourth proportional to 1,393.08, 2,090.49 and 1,263.32 is: 1,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.08 : 2,090.49 = 1,263.32 : x
  2. Step 2: Convert to fraction form
    1,393.08/2,090.49 = 1,263.32/x
  3. Step 3: Cross multiply
    1,393.08x = 2,090.49 × 1,263.32
  4. Step 4: Simplify right side
    1,393.08x = 2,640,944.22
  5. Step 5: Solve for x
    x = 2,640,944.22/1,393.08
  6. Step 6: Final answer
    x = 1,895.76

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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.