Home / 2,612.22-3,603.87-1,668.05

Finding the Fourth Proportional to 2,612.22, 3,603.87 and 1,668.05

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Solution

The fourth proportional to 2,612.22, 3,603.87 and 1,668.05 is: 2,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.22 : 3,603.87 = 1,668.05 : x
  2. Step 2: Convert to fraction form
    2,612.22/3,603.87 = 1,668.05/x
  3. Step 3: Cross multiply
    2,612.22x = 3,603.87 × 1,668.05
  4. Step 4: Simplify right side
    2,612.22x = 6,011,427.01
  5. Step 5: Solve for x
    x = 6,011,427.01/2,612.22
  6. Step 6: Final answer
    x = 2,301.28

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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.