Home / 3,030.60-4,544.55-1,387.68

Finding the Fourth Proportional to 3,030.60, 4,544.55 and 1,387.68

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Solution

The fourth proportional to 3,030.60, 4,544.55 and 1,387.68 is: 2,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.60 : 4,544.55 = 1,387.68 : x
  2. Step 2: Convert to fraction form
    3,030.60/4,544.55 = 1,387.68/x
  3. Step 3: Cross multiply
    3,030.60x = 4,544.55 × 1,387.68
  4. Step 4: Simplify right side
    3,030.60x = 6,306,381.14
  5. Step 5: Solve for x
    x = 6,306,381.14/3,030.60
  6. Step 6: Final answer
    x = 2,080.90

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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.