Home / 2,057.60-3,086.40-1,513.60

Finding the Fourth Proportional to 2,057.60, 3,086.40 and 1,513.60

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Solution

The fourth proportional to 2,057.60, 3,086.40 and 1,513.60 is: 2,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.60 : 3,086.40 = 1,513.60 : x
  2. Step 2: Convert to fraction form
    2,057.60/3,086.40 = 1,513.60/x
  3. Step 3: Cross multiply
    2,057.60x = 3,086.40 × 1,513.60
  4. Step 4: Simplify right side
    2,057.60x = 4,671,575.04
  5. Step 5: Solve for x
    x = 4,671,575.04/2,057.60
  6. Step 6: Final answer
    x = 2,270.40

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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.