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Finding the Fourth Proportional to 2,762.96, 3,810.88 and 1,877.24

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Solution

The fourth proportional to 2,762.96, 3,810.88 and 1,877.24 is: 2,589.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.96 : 3,810.88 = 1,877.24 : x
  2. Step 2: Convert to fraction form
    2,762.96/3,810.88 = 1,877.24/x
  3. Step 3: Cross multiply
    2,762.96x = 3,810.88 × 1,877.24
  4. Step 4: Simplify right side
    2,762.96x = 7,153,936.37
  5. Step 5: Solve for x
    x = 7,153,936.37/2,762.96
  6. Step 6: Final answer
    x = 2,589.23

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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.