Home / 5,075.78-7,613.62-2,611.28

Finding the Fourth Proportional to 5,075.78, 7,613.62 and 2,611.28

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Solution

The fourth proportional to 5,075.78, 7,613.62 and 2,611.28 is: 3,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.78 : 7,613.62 = 2,611.28 : x
  2. Step 2: Convert to fraction form
    5,075.78/7,613.62 = 2,611.28/x
  3. Step 3: Cross multiply
    5,075.78x = 7,613.62 × 2,611.28
  4. Step 4: Simplify right side
    5,075.78x = 19,881,293.63
  5. Step 5: Solve for x
    x = 19,881,293.63/5,075.78
  6. Step 6: Final answer
    x = 3,916.89

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1.5x scale

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.