Home / 4,283.44-5,911.20-2,420.40

Finding the Fourth Proportional to 4,283.44, 5,911.20 and 2,420.40

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Solution

The fourth proportional to 4,283.44, 5,911.20 and 2,420.40 is: 3,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,283.44 : 5,911.20 = 2,420.40 : x
  2. Step 2: Convert to fraction form
    4,283.44/5,911.20 = 2,420.40/x
  3. Step 3: Cross multiply
    4,283.44x = 5,911.20 × 2,420.40
  4. Step 4: Simplify right side
    4,283.44x = 14,307,468.48
  5. Step 5: Solve for x
    x = 14,307,468.48/4,283.44
  6. Step 6: Final answer
    x = 3,340.18

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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.