Home / 2,948.40-4,420.80-1,386.27

Finding the Fourth Proportional to 2,948.40, 4,420.80 and 1,386.27

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Solution

The fourth proportional to 2,948.40, 4,420.80 and 1,386.27 is: 2,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.40 : 4,420.80 = 1,386.27 : x
  2. Step 2: Convert to fraction form
    2,948.40/4,420.80 = 1,386.27/x
  3. Step 3: Cross multiply
    2,948.40x = 4,420.80 × 1,386.27
  4. Step 4: Simplify right side
    2,948.40x = 6,128,422.42
  5. Step 5: Solve for x
    x = 6,128,422.42/2,948.40
  6. Step 6: Final answer
    x = 2,078.56

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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.