Home / 4,518.58-6,777.87-1,398.51

Finding the Fourth Proportional to 4,518.58, 6,777.87 and 1,398.51

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Solution

The fourth proportional to 4,518.58, 6,777.87 and 1,398.51 is: 2,097.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.58 : 6,777.87 = 1,398.51 : x
  2. Step 2: Convert to fraction form
    4,518.58/6,777.87 = 1,398.51/x
  3. Step 3: Cross multiply
    4,518.58x = 6,777.87 × 1,398.51
  4. Step 4: Simplify right side
    4,518.58x = 9,478,932.87
  5. Step 5: Solve for x
    x = 9,478,932.87/4,518.58
  6. Step 6: Final answer
    x = 2,097.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.