Home / 2,189.51-3,261.65-2,055.05

Finding the Fourth Proportional to 2,189.51, 3,261.65 and 2,055.05

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Solution

The fourth proportional to 2,189.51, 3,261.65 and 2,055.05 is: 3,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.51 : 3,261.65 = 2,055.05 : x
  2. Step 2: Convert to fraction form
    2,189.51/3,261.65 = 2,055.05/x
  3. Step 3: Cross multiply
    2,189.51x = 3,261.65 × 2,055.05
  4. Step 4: Simplify right side
    2,189.51x = 6,702,853.83
  5. Step 5: Solve for x
    x = 6,702,853.83/2,189.51
  6. Step 6: Final answer
    x = 3,061.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.