Home / 2,990.16-4,486.14-1,042.74

Finding the Fourth Proportional to 2,990.16, 4,486.14 and 1,042.74

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Solution

The fourth proportional to 2,990.16, 4,486.14 and 1,042.74 is: 1,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.16 : 4,486.14 = 1,042.74 : x
  2. Step 2: Convert to fraction form
    2,990.16/4,486.14 = 1,042.74/x
  3. Step 3: Cross multiply
    2,990.16x = 4,486.14 × 1,042.74
  4. Step 4: Simplify right side
    2,990.16x = 4,677,877.62
  5. Step 5: Solve for x
    x = 4,677,877.62/2,990.16
  6. Step 6: Final answer
    x = 1,564.42

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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.