Home / 2,511.60-3,464.40-2,015.40

Finding the Fourth Proportional to 2,511.60, 3,464.40 and 2,015.40

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Solution

The fourth proportional to 2,511.60, 3,464.40 and 2,015.40 is: 2,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.60 : 3,464.40 = 2,015.40 : x
  2. Step 2: Convert to fraction form
    2,511.60/3,464.40 = 2,015.40/x
  3. Step 3: Cross multiply
    2,511.60x = 3,464.40 × 2,015.40
  4. Step 4: Simplify right side
    2,511.60x = 6,982,151.76
  5. Step 5: Solve for x
    x = 6,982,151.76/2,511.60
  6. Step 6: Final answer
    x = 2,779.96

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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.