Home / 4,678.40-6,448.44-3,313.89

Finding the Fourth Proportional to 4,678.40, 6,448.44 and 3,313.89

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Solution

The fourth proportional to 4,678.40, 6,448.44 and 3,313.89 is: 4,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.40 : 6,448.44 = 3,313.89 : x
  2. Step 2: Convert to fraction form
    4,678.40/6,448.44 = 3,313.89/x
  3. Step 3: Cross multiply
    4,678.40x = 6,448.44 × 3,313.89
  4. Step 4: Simplify right side
    4,678.40x = 21,369,420.83
  5. Step 5: Solve for x
    x = 21,369,420.83/4,678.40
  6. Step 6: Final answer
    x = 4,567.68

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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.