Home / 3,030.83-4,539.86-1,388.76

Finding the Fourth Proportional to 3,030.83, 4,539.86 and 1,388.76

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Solution

The fourth proportional to 3,030.83, 4,539.86 and 1,388.76 is: 2,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.83 : 4,539.86 = 1,388.76 : x
  2. Step 2: Convert to fraction form
    3,030.83/4,539.86 = 1,388.76/x
  3. Step 3: Cross multiply
    3,030.83x = 4,539.86 × 1,388.76
  4. Step 4: Simplify right side
    3,030.83x = 6,304,790.56
  5. Step 5: Solve for x
    x = 6,304,790.56/3,030.83
  6. Step 6: Final answer
    x = 2,080.22

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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.