Home / 6,448.41-8,899.37-3,929.91

Finding the Fourth Proportional to 6,448.41, 8,899.37 and 3,929.91

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Solution

The fourth proportional to 6,448.41, 8,899.37 and 3,929.91 is: 5,423.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.41 : 8,899.37 = 3,929.91 : x
  2. Step 2: Convert to fraction form
    6,448.41/8,899.37 = 3,929.91/x
  3. Step 3: Cross multiply
    6,448.41x = 8,899.37 × 3,929.91
  4. Step 4: Simplify right side
    6,448.41x = 34,973,703.51
  5. Step 5: Solve for x
    x = 34,973,703.51/6,448.41
  6. Step 6: Final answer
    x = 5,423.62

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1.5x scale

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.