Home / 3,585.40-5,376.74-1,393.62

Finding the Fourth Proportional to 3,585.40, 5,376.74 and 1,393.62

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Solution

The fourth proportional to 3,585.40, 5,376.74 and 1,393.62 is: 2,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.40 : 5,376.74 = 1,393.62 : x
  2. Step 2: Convert to fraction form
    3,585.40/5,376.74 = 1,393.62/x
  3. Step 3: Cross multiply
    3,585.40x = 5,376.74 × 1,393.62
  4. Step 4: Simplify right side
    3,585.40x = 7,493,132.40
  5. Step 5: Solve for x
    x = 7,493,132.40/3,585.40
  6. Step 6: Final answer
    x = 2,089.90

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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.