Home / 2,988.48-4,118.28-2,243.28

Finding the Fourth Proportional to 2,988.48, 4,118.28 and 2,243.28

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Solution

The fourth proportional to 2,988.48, 4,118.28 and 2,243.28 is: 3,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.48 : 4,118.28 = 2,243.28 : x
  2. Step 2: Convert to fraction form
    2,988.48/4,118.28 = 2,243.28/x
  3. Step 3: Cross multiply
    2,988.48x = 4,118.28 × 2,243.28
  4. Step 4: Simplify right side
    2,988.48x = 9,238,455.16
  5. Step 5: Solve for x
    x = 9,238,455.16/2,988.48
  6. Step 6: Final answer
    x = 3,091.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.