Home / 3,938.95-5,435.52-2,260.19

Finding the Fourth Proportional to 3,938.95, 5,435.52 and 2,260.19

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Solution

The fourth proportional to 3,938.95, 5,435.52 and 2,260.19 is: 3,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.95 : 5,435.52 = 2,260.19 : x
  2. Step 2: Convert to fraction form
    3,938.95/5,435.52 = 2,260.19/x
  3. Step 3: Cross multiply
    3,938.95x = 5,435.52 × 2,260.19
  4. Step 4: Simplify right side
    3,938.95x = 12,285,307.95
  5. Step 5: Solve for x
    x = 12,285,307.95/3,938.95
  6. Step 6: Final answer
    x = 3,118.93

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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.