Home / 6,478.02-9,709.74-2,577.87

Finding the Fourth Proportional to 6,478.02, 9,709.74 and 2,577.87

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Solution

The fourth proportional to 6,478.02, 9,709.74 and 2,577.87 is: 3,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.02 : 9,709.74 = 2,577.87 : x
  2. Step 2: Convert to fraction form
    6,478.02/9,709.74 = 2,577.87/x
  3. Step 3: Cross multiply
    6,478.02x = 9,709.74 × 2,577.87
  4. Step 4: Simplify right side
    6,478.02x = 25,030,447.45
  5. Step 5: Solve for x
    x = 25,030,447.45/6,478.02
  6. Step 6: Final answer
    x = 3,863.90

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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.