Home / 2,100.08-3,138.04-1,445.60

Finding the Fourth Proportional to 2,100.08, 3,138.04 and 1,445.60

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Solution

The fourth proportional to 2,100.08, 3,138.04 and 1,445.60 is: 2,160.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.08 : 3,138.04 = 1,445.60 : x
  2. Step 2: Convert to fraction form
    2,100.08/3,138.04 = 1,445.60/x
  3. Step 3: Cross multiply
    2,100.08x = 3,138.04 × 1,445.60
  4. Step 4: Simplify right side
    2,100.08x = 4,536,350.62
  5. Step 5: Solve for x
    x = 4,536,350.62/2,100.08
  6. Step 6: Final answer
    x = 2,160.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.