Home / 2,015.83-2,781.52-1,176.40

Finding the Fourth Proportional to 2,015.83, 2,781.52 and 1,176.40

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Solution

The fourth proportional to 2,015.83, 2,781.52 and 1,176.40 is: 1,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.83 : 2,781.52 = 1,176.40 : x
  2. Step 2: Convert to fraction form
    2,015.83/2,781.52 = 1,176.40/x
  3. Step 3: Cross multiply
    2,015.83x = 2,781.52 × 1,176.40
  4. Step 4: Simplify right side
    2,015.83x = 3,272,180.13
  5. Step 5: Solve for x
    x = 3,272,180.13/2,015.83
  6. Step 6: Final answer
    x = 1,623.24

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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.