Home / 4,278.45-5,903.40-2,485.90

Finding the Fourth Proportional to 4,278.45, 5,903.40 and 2,485.90

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Solution

The fourth proportional to 4,278.45, 5,903.40 and 2,485.90 is: 3,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.45 : 5,903.40 = 2,485.90 : x
  2. Step 2: Convert to fraction form
    4,278.45/5,903.40 = 2,485.90/x
  3. Step 3: Cross multiply
    4,278.45x = 5,903.40 × 2,485.90
  4. Step 4: Simplify right side
    4,278.45x = 14,675,262.06
  5. Step 5: Solve for x
    x = 14,675,262.06/4,278.45
  6. Step 6: Final answer
    x = 3,430.04

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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.