Home / 5,075.70-7,613.48-1,378.28

Finding the Fourth Proportional to 5,075.70, 7,613.48 and 1,378.28

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Solution

The fourth proportional to 5,075.70, 7,613.48 and 1,378.28 is: 2,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.70 : 7,613.48 = 1,378.28 : x
  2. Step 2: Convert to fraction form
    5,075.70/7,613.48 = 1,378.28/x
  3. Step 3: Cross multiply
    5,075.70x = 7,613.48 × 1,378.28
  4. Step 4: Simplify right side
    5,075.70x = 10,493,462.26
  5. Step 5: Solve for x
    x = 10,493,462.26/5,075.70
  6. Step 6: Final answer
    x = 2,067.39

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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.