Home / 1,158.88-1,597.68-1,003.36

Finding the Fourth Proportional to 1,158.88, 1,597.68 and 1,003.36

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Solution

The fourth proportional to 1,158.88, 1,597.68 and 1,003.36 is: 1,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.88 : 1,597.68 = 1,003.36 : x
  2. Step 2: Convert to fraction form
    1,158.88/1,597.68 = 1,003.36/x
  3. Step 3: Cross multiply
    1,158.88x = 1,597.68 × 1,003.36
  4. Step 4: Simplify right side
    1,158.88x = 1,603,048.20
  5. Step 5: Solve for x
    x = 1,603,048.20/1,158.88
  6. Step 6: Final answer
    x = 1,383.27

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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.