Home / 2,479.74-3,418.54-1,771.40

Finding the Fourth Proportional to 2,479.74, 3,418.54 and 1,771.40

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Solution

The fourth proportional to 2,479.74, 3,418.54 and 1,771.40 is: 2,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.74 : 3,418.54 = 1,771.40 : x
  2. Step 2: Convert to fraction form
    2,479.74/3,418.54 = 1,771.40/x
  3. Step 3: Cross multiply
    2,479.74x = 3,418.54 × 1,771.40
  4. Step 4: Simplify right side
    2,479.74x = 6,055,601.76
  5. Step 5: Solve for x
    x = 6,055,601.76/2,479.74
  6. Step 6: Final answer
    x = 2,442.03

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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.