Home / 3,506.78-4,839.70-2,621.06

Finding the Fourth Proportional to 3,506.78, 4,839.70 and 2,621.06

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Solution

The fourth proportional to 3,506.78, 4,839.70 and 2,621.06 is: 3,617.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.78 : 4,839.70 = 2,621.06 : x
  2. Step 2: Convert to fraction form
    3,506.78/4,839.70 = 2,621.06/x
  3. Step 3: Cross multiply
    3,506.78x = 4,839.70 × 2,621.06
  4. Step 4: Simplify right side
    3,506.78x = 12,685,144.08
  5. Step 5: Solve for x
    x = 12,685,144.08/3,506.78
  6. Step 6: Final answer
    x = 3,617.32

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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.