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Finding the Fourth Proportional to 7,075.15, 10,612.42 and 1,881.02

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Solution

The fourth proportional to 7,075.15, 10,612.42 and 1,881.02 is: 2,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.15 : 10,612.42 = 1,881.02 : x
  2. Step 2: Convert to fraction form
    7,075.15/10,612.42 = 1,881.02/x
  3. Step 3: Cross multiply
    7,075.15x = 10,612.42 × 1,881.02
  4. Step 4: Simplify right side
    7,075.15x = 19,962,196.10
  5. Step 5: Solve for x
    x = 19,962,196.10/7,075.15
  6. Step 6: Final answer
    x = 2,821.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.