Home / 3,555.18-5,333.40-1,215.43

Finding the Fourth Proportional to 3,555.18, 5,333.40 and 1,215.43

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Solution

The fourth proportional to 3,555.18, 5,333.40 and 1,215.43 is: 1,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.18 : 5,333.40 = 1,215.43 : x
  2. Step 2: Convert to fraction form
    3,555.18/5,333.40 = 1,215.43/x
  3. Step 3: Cross multiply
    3,555.18x = 5,333.40 × 1,215.43
  4. Step 4: Simplify right side
    3,555.18x = 6,482,361.03
  5. Step 5: Solve for x
    x = 6,482,361.03/3,555.18
  6. Step 6: Final answer
    x = 1,823.36

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1.5x scale

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.