Home / 2,988.67-4,483.61-1,139.80

Finding the Fourth Proportional to 2,988.67, 4,483.61 and 1,139.80

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Solution

The fourth proportional to 2,988.67, 4,483.61 and 1,139.80 is: 1,709.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.67 : 4,483.61 = 1,139.80 : x
  2. Step 2: Convert to fraction form
    2,988.67/4,483.61 = 1,139.80/x
  3. Step 3: Cross multiply
    2,988.67x = 4,483.61 × 1,139.80
  4. Step 4: Simplify right side
    2,988.67x = 5,110,412.98
  5. Step 5: Solve for x
    x = 5,110,412.98/2,988.67
  6. Step 6: Final answer
    x = 1,709.93

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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.