Home / 4,013.87-5,541.30-2,420.79

Finding the Fourth Proportional to 4,013.87, 5,541.30 and 2,420.79

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Solution

The fourth proportional to 4,013.87, 5,541.30 and 2,420.79 is: 3,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,013.87 : 5,541.30 = 2,420.79 : x
  2. Step 2: Convert to fraction form
    4,013.87/5,541.30 = 2,420.79/x
  3. Step 3: Cross multiply
    4,013.87x = 5,541.30 × 2,420.79
  4. Step 4: Simplify right side
    4,013.87x = 13,414,323.63
  5. Step 5: Solve for x
    x = 13,414,323.63/4,013.87
  6. Step 6: Final answer
    x = 3,342.00

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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.