Home / 1,335.40-2,003.50-469.96

Finding the Fourth Proportional to 1,335.40, 2,003.50 and 469.96

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Solution

The fourth proportional to 1,335.40, 2,003.50 and 469.96 is: 705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.40 : 2,003.50 = 469.96 : x
  2. Step 2: Convert to fraction form
    1,335.40/2,003.50 = 469.96/x
  3. Step 3: Cross multiply
    1,335.40x = 2,003.50 × 469.96
  4. Step 4: Simplify right side
    1,335.40x = 941,564.86
  5. Step 5: Solve for x
    x = 941,564.86/1,335.40
  6. Step 6: Final answer
    x = 705.08

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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.