Home / 3,075.03-4,609.65-1,125.75

Finding the Fourth Proportional to 3,075.03, 4,609.65 and 1,125.75

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Solution

The fourth proportional to 3,075.03, 4,609.65 and 1,125.75 is: 1,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.03 : 4,609.65 = 1,125.75 : x
  2. Step 2: Convert to fraction form
    3,075.03/4,609.65 = 1,125.75/x
  3. Step 3: Cross multiply
    3,075.03x = 4,609.65 × 1,125.75
  4. Step 4: Simplify right side
    3,075.03x = 5,189,313.49
  5. Step 5: Solve for x
    x = 5,189,313.49/3,075.03
  6. Step 6: Final answer
    x = 1,687.57

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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.