Home / 3,585.90-5,378.85-1,120.73

Finding the Fourth Proportional to 3,585.90, 5,378.85 and 1,120.73

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Solution

The fourth proportional to 3,585.90, 5,378.85 and 1,120.73 is: 1,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.90 : 5,378.85 = 1,120.73 : x
  2. Step 2: Convert to fraction form
    3,585.90/5,378.85 = 1,120.73/x
  3. Step 3: Cross multiply
    3,585.90x = 5,378.85 × 1,120.73
  4. Step 4: Simplify right side
    3,585.90x = 6,028,256.74
  5. Step 5: Solve for x
    x = 6,028,256.74/3,585.90
  6. Step 6: Final answer
    x = 1,681.10

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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.