Home / 1,383.47-2,075.19-799.35

Finding the Fourth Proportional to 1,383.47, 2,075.19 and 799.35

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Solution

The fourth proportional to 1,383.47, 2,075.19 and 799.35 is: 1,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.47 : 2,075.19 = 799.35 : x
  2. Step 2: Convert to fraction form
    1,383.47/2,075.19 = 799.35/x
  3. Step 3: Cross multiply
    1,383.47x = 2,075.19 × 799.35
  4. Step 4: Simplify right side
    1,383.47x = 1,658,803.13
  5. Step 5: Solve for x
    x = 1,658,803.13/1,383.47
  6. Step 6: Final answer
    x = 1,199.02

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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.