Home / 6,389.64-9,577.14-2,686.32

Finding the Fourth Proportional to 6,389.64, 9,577.14 and 2,686.32

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Solution

The fourth proportional to 6,389.64, 9,577.14 and 2,686.32 is: 4,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.64 : 9,577.14 = 2,686.32 : x
  2. Step 2: Convert to fraction form
    6,389.64/9,577.14 = 2,686.32/x
  3. Step 3: Cross multiply
    6,389.64x = 9,577.14 × 2,686.32
  4. Step 4: Simplify right side
    6,389.64x = 25,727,262.72
  5. Step 5: Solve for x
    x = 25,727,262.72/6,389.64
  6. Step 6: Final answer
    x = 4,026.40

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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.