Home / 2,918.48-4,369.08-1,890.32

Finding the Fourth Proportional to 2,918.48, 4,369.08 and 1,890.32

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Solution

The fourth proportional to 2,918.48, 4,369.08 and 1,890.32 is: 2,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.48 : 4,369.08 = 1,890.32 : x
  2. Step 2: Convert to fraction form
    2,918.48/4,369.08 = 1,890.32/x
  3. Step 3: Cross multiply
    2,918.48x = 4,369.08 × 1,890.32
  4. Step 4: Simplify right side
    2,918.48x = 8,258,959.31
  5. Step 5: Solve for x
    x = 8,258,959.31/2,918.48
  6. Step 6: Final answer
    x = 2,829.88

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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.