Home / 3,455.70-5,180.61-1,506.45

Finding the Fourth Proportional to 3,455.70, 5,180.61 and 1,506.45

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Solution

The fourth proportional to 3,455.70, 5,180.61 and 1,506.45 is: 2,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.70 : 5,180.61 = 1,506.45 : x
  2. Step 2: Convert to fraction form
    3,455.70/5,180.61 = 1,506.45/x
  3. Step 3: Cross multiply
    3,455.70x = 5,180.61 × 1,506.45
  4. Step 4: Simplify right side
    3,455.70x = 7,804,329.93
  5. Step 5: Solve for x
    x = 7,804,329.93/3,455.70
  6. Step 6: Final answer
    x = 2,258.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.