Home / 1,821.66-2,521.11-1,777.98

Finding the Fourth Proportional to 1,821.66, 2,521.11 and 1,777.98

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Solution

The fourth proportional to 1,821.66, 2,521.11 and 1,777.98 is: 2,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.66 : 2,521.11 = 1,777.98 : x
  2. Step 2: Convert to fraction form
    1,821.66/2,521.11 = 1,777.98/x
  3. Step 3: Cross multiply
    1,821.66x = 2,521.11 × 1,777.98
  4. Step 4: Simplify right side
    1,821.66x = 4,482,483.16
  5. Step 5: Solve for x
    x = 4,482,483.16/1,821.66
  6. Step 6: Final answer
    x = 2,460.66

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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.