Home / 6,470.51-8,928.68-3,782.35

Finding the Fourth Proportional to 6,470.51, 8,928.68 and 3,782.35

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Solution

The fourth proportional to 6,470.51, 8,928.68 and 3,782.35 is: 5,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.51 : 8,928.68 = 3,782.35 : x
  2. Step 2: Convert to fraction form
    6,470.51/8,928.68 = 3,782.35/x
  3. Step 3: Cross multiply
    6,470.51x = 8,928.68 × 3,782.35
  4. Step 4: Simplify right side
    6,470.51x = 33,771,406.32
  5. Step 5: Solve for x
    x = 33,771,406.32/6,470.51
  6. Step 6: Final answer
    x = 5,219.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.