Home / 6,470.12-9,705.45-2,087.03

Finding the Fourth Proportional to 6,470.12, 9,705.45 and 2,087.03

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Solution

The fourth proportional to 6,470.12, 9,705.45 and 2,087.03 is: 3,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.12 : 9,705.45 = 2,087.03 : x
  2. Step 2: Convert to fraction form
    6,470.12/9,705.45 = 2,087.03/x
  3. Step 3: Cross multiply
    6,470.12x = 9,705.45 × 2,087.03
  4. Step 4: Simplify right side
    6,470.12x = 20,255,565.31
  5. Step 5: Solve for x
    x = 20,255,565.31/6,470.12
  6. Step 6: Final answer
    x = 3,130.63

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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.