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Finding the Fourth Proportional to 2,775.53, 3,810.18 and 2,381.87

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Solution

The fourth proportional to 2,775.53, 3,810.18 and 2,381.87 is: 3,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.53 : 3,810.18 = 2,381.87 : x
  2. Step 2: Convert to fraction form
    2,775.53/3,810.18 = 2,381.87/x
  3. Step 3: Cross multiply
    2,775.53x = 3,810.18 × 2,381.87
  4. Step 4: Simplify right side
    2,775.53x = 9,075,341.53
  5. Step 5: Solve for x
    x = 9,075,341.53/2,775.53
  6. Step 6: Final answer
    x = 3,269.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.