Home / 5,409.79-8,075.57-5,003.98

Finding the Fourth Proportional to 5,409.79, 8,075.57 and 5,003.98

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Solution

The fourth proportional to 5,409.79, 8,075.57 and 5,003.98 is: 7,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.79 : 8,075.57 = 5,003.98 : x
  2. Step 2: Convert to fraction form
    5,409.79/8,075.57 = 5,003.98/x
  3. Step 3: Cross multiply
    5,409.79x = 8,075.57 × 5,003.98
  4. Step 4: Simplify right side
    5,409.79x = 40,409,987.78
  5. Step 5: Solve for x
    x = 40,409,987.78/5,409.79
  6. Step 6: Final answer
    x = 7,469.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.