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Finding the Fourth Proportional to 6,555.79, 9,835.44 and 2,858.32

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Solution

The fourth proportional to 6,555.79, 9,835.44 and 2,858.32 is: 4,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.79 : 9,835.44 = 2,858.32 : x
  2. Step 2: Convert to fraction form
    6,555.79/9,835.44 = 2,858.32/x
  3. Step 3: Cross multiply
    6,555.79x = 9,835.44 × 2,858.32
  4. Step 4: Simplify right side
    6,555.79x = 28,112,834.86
  5. Step 5: Solve for x
    x = 28,112,834.86/6,555.79
  6. Step 6: Final answer
    x = 4,288.25

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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.