Home / 3,075.07-4,242.95-1,955.60

Finding the Fourth Proportional to 3,075.07, 4,242.95 and 1,955.60

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Solution

The fourth proportional to 3,075.07, 4,242.95 and 1,955.60 is: 2,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.07 : 4,242.95 = 1,955.60 : x
  2. Step 2: Convert to fraction form
    3,075.07/4,242.95 = 1,955.60/x
  3. Step 3: Cross multiply
    3,075.07x = 4,242.95 × 1,955.60
  4. Step 4: Simplify right side
    3,075.07x = 8,297,513.02
  5. Step 5: Solve for x
    x = 8,297,513.02/3,075.07
  6. Step 6: Final answer
    x = 2,698.32

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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.