Home / 2,455.21-3,387.79-1,460.46

Finding the Fourth Proportional to 2,455.21, 3,387.79 and 1,460.46

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Solution

The fourth proportional to 2,455.21, 3,387.79 and 1,460.46 is: 2,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.21 : 3,387.79 = 1,460.46 : x
  2. Step 2: Convert to fraction form
    2,455.21/3,387.79 = 1,460.46/x
  3. Step 3: Cross multiply
    2,455.21x = 3,387.79 × 1,460.46
  4. Step 4: Simplify right side
    2,455.21x = 4,947,731.78
  5. Step 5: Solve for x
    x = 4,947,731.78/2,455.21
  6. Step 6: Final answer
    x = 2,015.20

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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.