Home / 7,075.80-9,764.46-4,091.58

Finding the Fourth Proportional to 7,075.80, 9,764.46 and 4,091.58

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Solution

The fourth proportional to 7,075.80, 9,764.46 and 4,091.58 is: 5,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.80 : 9,764.46 = 4,091.58 : x
  2. Step 2: Convert to fraction form
    7,075.80/9,764.46 = 4,091.58/x
  3. Step 3: Cross multiply
    7,075.80x = 9,764.46 × 4,091.58
  4. Step 4: Simplify right side
    7,075.80x = 39,952,069.25
  5. Step 5: Solve for x
    x = 39,952,069.25/7,075.80
  6. Step 6: Final answer
    x = 5,646.30

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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.