Home / 2,420.88-3,345.48-1,954.32

Finding the Fourth Proportional to 2,420.88, 3,345.48 and 1,954.32

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Solution

The fourth proportional to 2,420.88, 3,345.48 and 1,954.32 is: 2,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.88 : 3,345.48 = 1,954.32 : x
  2. Step 2: Convert to fraction form
    2,420.88/3,345.48 = 1,954.32/x
  3. Step 3: Cross multiply
    2,420.88x = 3,345.48 × 1,954.32
  4. Step 4: Simplify right side
    2,420.88x = 6,538,138.47
  5. Step 5: Solve for x
    x = 6,538,138.47/2,420.88
  6. Step 6: Final answer
    x = 2,700.73

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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.