Home / 2,180.24-3,009.12-1,590.04

Finding the Fourth Proportional to 2,180.24, 3,009.12 and 1,590.04

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Solution

The fourth proportional to 2,180.24, 3,009.12 and 1,590.04 is: 2,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.24 : 3,009.12 = 1,590.04 : x
  2. Step 2: Convert to fraction form
    2,180.24/3,009.12 = 1,590.04/x
  3. Step 3: Cross multiply
    2,180.24x = 3,009.12 × 1,590.04
  4. Step 4: Simplify right side
    2,180.24x = 4,784,621.16
  5. Step 5: Solve for x
    x = 4,784,621.16/2,180.24
  6. Step 6: Final answer
    x = 2,194.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.