Home / 5,136.35-7,075.86-4,886.21

Finding the Fourth Proportional to 5,136.35, 7,075.86 and 4,886.21

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Solution

The fourth proportional to 5,136.35, 7,075.86 and 4,886.21 is: 6,731.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.35 : 7,075.86 = 4,886.21 : x
  2. Step 2: Convert to fraction form
    5,136.35/7,075.86 = 4,886.21/x
  3. Step 3: Cross multiply
    5,136.35x = 7,075.86 × 4,886.21
  4. Step 4: Simplify right side
    5,136.35x = 34,574,137.26
  5. Step 5: Solve for x
    x = 34,574,137.26/5,136.35
  6. Step 6: Final answer
    x = 6,731.27

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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.