Home / 2,422.19-3,342.21-1,427.51

Finding the Fourth Proportional to 2,422.19, 3,342.21 and 1,427.51

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Solution

The fourth proportional to 2,422.19, 3,342.21 and 1,427.51 is: 1,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.19 : 3,342.21 = 1,427.51 : x
  2. Step 2: Convert to fraction form
    2,422.19/3,342.21 = 1,427.51/x
  3. Step 3: Cross multiply
    2,422.19x = 3,342.21 × 1,427.51
  4. Step 4: Simplify right side
    2,422.19x = 4,771,038.20
  5. Step 5: Solve for x
    x = 4,771,038.20/2,422.19
  6. Step 6: Final answer
    x = 1,969.72

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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.