Home / 5,621.79-7,758.51-3,104.40

Finding the Fourth Proportional to 5,621.79, 7,758.51 and 3,104.40

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Solution

The fourth proportional to 5,621.79, 7,758.51 and 3,104.40 is: 4,284.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.79 : 7,758.51 = 3,104.40 : x
  2. Step 2: Convert to fraction form
    5,621.79/7,758.51 = 3,104.40/x
  3. Step 3: Cross multiply
    5,621.79x = 7,758.51 × 3,104.40
  4. Step 4: Simplify right side
    5,621.79x = 24,085,518.44
  5. Step 5: Solve for x
    x = 24,085,518.44/5,621.79
  6. Step 6: Final answer
    x = 4,284.31

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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.