Home / 2,020.23-3,030.32-539.45

Finding the Fourth Proportional to 2,020.23, 3,030.32 and 539.45

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Solution

The fourth proportional to 2,020.23, 3,030.32 and 539.45 is: 809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.23 : 3,030.32 = 539.45 : x
  2. Step 2: Convert to fraction form
    2,020.23/3,030.32 = 539.45/x
  3. Step 3: Cross multiply
    2,020.23x = 3,030.32 × 539.45
  4. Step 4: Simplify right side
    2,020.23x = 1,634,703.68
  5. Step 5: Solve for x
    x = 1,634,703.68/2,020.23
  6. Step 6: Final answer
    x = 809.17

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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.