Home / 1,335.12-2,002.08-603.36

Finding the Fourth Proportional to 1,335.12, 2,002.08 and 603.36

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Solution

The fourth proportional to 1,335.12, 2,002.08 and 603.36 is: 904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.12 : 2,002.08 = 603.36 : x
  2. Step 2: Convert to fraction form
    1,335.12/2,002.08 = 603.36/x
  3. Step 3: Cross multiply
    1,335.12x = 2,002.08 × 603.36
  4. Step 4: Simplify right side
    1,335.12x = 1,207,974.99
  5. Step 5: Solve for x
    x = 1,207,974.99/1,335.12
  6. Step 6: Final answer
    x = 904.77

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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.