Home / 2,331.51-3,215.61-1,445.64

Finding the Fourth Proportional to 2,331.51, 3,215.61 and 1,445.64

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Solution

The fourth proportional to 2,331.51, 3,215.61 and 1,445.64 is: 1,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.51 : 3,215.61 = 1,445.64 : x
  2. Step 2: Convert to fraction form
    2,331.51/3,215.61 = 1,445.64/x
  3. Step 3: Cross multiply
    2,331.51x = 3,215.61 × 1,445.64
  4. Step 4: Simplify right side
    2,331.51x = 4,648,614.44
  5. Step 5: Solve for x
    x = 4,648,614.44/2,331.51
  6. Step 6: Final answer
    x = 1,993.82

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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.