Home / 3,075.30-4,613.55-1,320.30

Finding the Fourth Proportional to 3,075.30, 4,613.55 and 1,320.30

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Solution

The fourth proportional to 3,075.30, 4,613.55 and 1,320.30 is: 1,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.30 : 4,613.55 = 1,320.30 : x
  2. Step 2: Convert to fraction form
    3,075.30/4,613.55 = 1,320.30/x
  3. Step 3: Cross multiply
    3,075.30x = 4,613.55 × 1,320.30
  4. Step 4: Simplify right side
    3,075.30x = 6,091,270.07
  5. Step 5: Solve for x
    x = 6,091,270.07/3,075.30
  6. Step 6: Final answer
    x = 1,980.71

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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.