Home / 1,513.22-2,267.39-1,187.60

Finding the Fourth Proportional to 1,513.22, 2,267.39 and 1,187.60

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Solution

The fourth proportional to 1,513.22, 2,267.39 and 1,187.60 is: 1,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.22 : 2,267.39 = 1,187.60 : x
  2. Step 2: Convert to fraction form
    1,513.22/2,267.39 = 1,187.60/x
  3. Step 3: Cross multiply
    1,513.22x = 2,267.39 × 1,187.60
  4. Step 4: Simplify right side
    1,513.22x = 2,692,744.00
  5. Step 5: Solve for x
    x = 2,692,744.00/1,513.22
  6. Step 6: Final answer
    x = 1,779.49

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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.