Home / 3,520.95-4,858.56-1,948.95

Finding the Fourth Proportional to 3,520.95, 4,858.56 and 1,948.95

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Solution

The fourth proportional to 3,520.95, 4,858.56 and 1,948.95 is: 2,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.95 : 4,858.56 = 1,948.95 : x
  2. Step 2: Convert to fraction form
    3,520.95/4,858.56 = 1,948.95/x
  3. Step 3: Cross multiply
    3,520.95x = 4,858.56 × 1,948.95
  4. Step 4: Simplify right side
    3,520.95x = 9,469,090.51
  5. Step 5: Solve for x
    x = 9,469,090.51/3,520.95
  6. Step 6: Final answer
    x = 2,689.36

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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.