Home / 1,776.09-2,665.37-621.84

Finding the Fourth Proportional to 1,776.09, 2,665.37 and 621.84

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Solution

The fourth proportional to 1,776.09, 2,665.37 and 621.84 is: 933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.09 : 2,665.37 = 621.84 : x
  2. Step 2: Convert to fraction form
    1,776.09/2,665.37 = 621.84/x
  3. Step 3: Cross multiply
    1,776.09x = 2,665.37 × 621.84
  4. Step 4: Simplify right side
    1,776.09x = 1,657,445.23
  5. Step 5: Solve for x
    x = 1,657,445.23/1,776.09
  6. Step 6: Final answer
    x = 933.20

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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.