Home / 7,028.81-9,699.48-4,045.61

Finding the Fourth Proportional to 7,028.81, 9,699.48 and 4,045.61

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Solution

The fourth proportional to 7,028.81, 9,699.48 and 4,045.61 is: 5,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.81 : 9,699.48 = 4,045.61 : x
  2. Step 2: Convert to fraction form
    7,028.81/9,699.48 = 4,045.61/x
  3. Step 3: Cross multiply
    7,028.81x = 9,699.48 × 4,045.61
  4. Step 4: Simplify right side
    7,028.81x = 39,240,313.28
  5. Step 5: Solve for x
    x = 39,240,313.28/7,028.81
  6. Step 6: Final answer
    x = 5,582.78

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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.