Home / 3,075.30-4,242.70-1,748.82

Finding the Fourth Proportional to 3,075.30, 4,242.70 and 1,748.82

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Solution

The fourth proportional to 3,075.30, 4,242.70 and 1,748.82 is: 2,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.30 : 4,242.70 = 1,748.82 : x
  2. Step 2: Convert to fraction form
    3,075.30/4,242.70 = 1,748.82/x
  3. Step 3: Cross multiply
    3,075.30x = 4,242.70 × 1,748.82
  4. Step 4: Simplify right side
    3,075.30x = 7,419,718.61
  5. Step 5: Solve for x
    x = 7,419,718.61/3,075.30
  6. Step 6: Final answer
    x = 2,412.68

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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.