Home / 7,153.10-10,731.98-3,455.75

Finding the Fourth Proportional to 7,153.10, 10,731.98 and 3,455.75

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Solution

The fourth proportional to 7,153.10, 10,731.98 and 3,455.75 is: 5,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.10 : 10,731.98 = 3,455.75 : x
  2. Step 2: Convert to fraction form
    7,153.10/10,731.98 = 3,455.75/x
  3. Step 3: Cross multiply
    7,153.10x = 10,731.98 × 3,455.75
  4. Step 4: Simplify right side
    7,153.10x = 37,087,075.35
  5. Step 5: Solve for x
    x = 37,087,075.35/7,153.10
  6. Step 6: Final answer
    x = 5,184.76

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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.