Home / 2,078.60-3,114.58-1,455.08

Finding the Fourth Proportional to 2,078.60, 3,114.58 and 1,455.08

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Solution

The fourth proportional to 2,078.60, 3,114.58 and 1,455.08 is: 2,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.60 : 3,114.58 = 1,455.08 : x
  2. Step 2: Convert to fraction form
    2,078.60/3,114.58 = 1,455.08/x
  3. Step 3: Cross multiply
    2,078.60x = 3,114.58 × 1,455.08
  4. Step 4: Simplify right side
    2,078.60x = 4,531,943.86
  5. Step 5: Solve for x
    x = 4,531,943.86/2,078.60
  6. Step 6: Final answer
    x = 2,180.28

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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.