Home / 6,390.58-9,585.63-3,102.79

Finding the Fourth Proportional to 6,390.58, 9,585.63 and 3,102.79

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Solution

The fourth proportional to 6,390.58, 9,585.63 and 3,102.79 is: 4,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.58 : 9,585.63 = 3,102.79 : x
  2. Step 2: Convert to fraction form
    6,390.58/9,585.63 = 3,102.79/x
  3. Step 3: Cross multiply
    6,390.58x = 9,585.63 × 3,102.79
  4. Step 4: Simplify right side
    6,390.58x = 29,742,148.98
  5. Step 5: Solve for x
    x = 29,742,148.98/6,390.58
  6. Step 6: Final answer
    x = 4,654.06

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1.5x scale

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.