Home / 3,075.69-4,245.15-1,955.76

Finding the Fourth Proportional to 3,075.69, 4,245.15 and 1,955.76

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Solution

The fourth proportional to 3,075.69, 4,245.15 and 1,955.76 is: 2,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.69 : 4,245.15 = 1,955.76 : x
  2. Step 2: Convert to fraction form
    3,075.69/4,245.15 = 1,955.76/x
  3. Step 3: Cross multiply
    3,075.69x = 4,245.15 × 1,955.76
  4. Step 4: Simplify right side
    3,075.69x = 8,302,494.56
  5. Step 5: Solve for x
    x = 8,302,494.56/3,075.69
  6. Step 6: Final answer
    x = 2,699.39

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Double scale
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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.