Home / 2,777.15-3,832.48-1,518.21

Finding the Fourth Proportional to 2,777.15, 3,832.48 and 1,518.21

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Solution

The fourth proportional to 2,777.15, 3,832.48 and 1,518.21 is: 2,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.15 : 3,832.48 = 1,518.21 : x
  2. Step 2: Convert to fraction form
    2,777.15/3,832.48 = 1,518.21/x
  3. Step 3: Cross multiply
    2,777.15x = 3,832.48 × 1,518.21
  4. Step 4: Simplify right side
    2,777.15x = 5,818,509.46
  5. Step 5: Solve for x
    x = 5,818,509.46/2,777.15
  6. Step 6: Final answer
    x = 2,095.14

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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.