Home / 5,311.36-7,329.72-2,953.45

Finding the Fourth Proportional to 5,311.36, 7,329.72 and 2,953.45

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Solution

The fourth proportional to 5,311.36, 7,329.72 and 2,953.45 is: 4,075.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.36 : 7,329.72 = 2,953.45 : x
  2. Step 2: Convert to fraction form
    5,311.36/7,329.72 = 2,953.45/x
  3. Step 3: Cross multiply
    5,311.36x = 7,329.72 × 2,953.45
  4. Step 4: Simplify right side
    5,311.36x = 21,647,961.53
  5. Step 5: Solve for x
    x = 21,647,961.53/5,311.36
  6. Step 6: Final answer
    x = 4,075.79

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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.