Home / 7,039.73-9,714.55-4,208.68

Finding the Fourth Proportional to 7,039.73, 9,714.55 and 4,208.68

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Solution

The fourth proportional to 7,039.73, 9,714.55 and 4,208.68 is: 5,807.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.73 : 9,714.55 = 4,208.68 : x
  2. Step 2: Convert to fraction form
    7,039.73/9,714.55 = 4,208.68/x
  3. Step 3: Cross multiply
    7,039.73x = 9,714.55 × 4,208.68
  4. Step 4: Simplify right side
    7,039.73x = 40,885,387.16
  5. Step 5: Solve for x
    x = 40,885,387.16/7,039.73
  6. Step 6: Final answer
    x = 5,807.81

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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.