Home / 3,042.80-4,564.67-1,287.81

Finding the Fourth Proportional to 3,042.80, 4,564.67 and 1,287.81

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Solution

The fourth proportional to 3,042.80, 4,564.67 and 1,287.81 is: 1,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.80 : 4,564.67 = 1,287.81 : x
  2. Step 2: Convert to fraction form
    3,042.80/4,564.67 = 1,287.81/x
  3. Step 3: Cross multiply
    3,042.80x = 4,564.67 × 1,287.81
  4. Step 4: Simplify right side
    3,042.80x = 5,878,421.23
  5. Step 5: Solve for x
    x = 5,878,421.23/3,042.80
  6. Step 6: Final answer
    x = 1,931.91

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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.