Home / 5,268.80-7,271.16-3,030.68

Finding the Fourth Proportional to 5,268.80, 7,271.16 and 3,030.68

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Solution

The fourth proportional to 5,268.80, 7,271.16 and 3,030.68 is: 4,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.80 : 7,271.16 = 3,030.68 : x
  2. Step 2: Convert to fraction form
    5,268.80/7,271.16 = 3,030.68/x
  3. Step 3: Cross multiply
    5,268.80x = 7,271.16 × 3,030.68
  4. Step 4: Simplify right side
    5,268.80x = 22,036,507.68
  5. Step 5: Solve for x
    x = 22,036,507.68/5,268.80
  6. Step 6: Final answer
    x = 4,182.45

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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.