Home / 5,127.58-7,075.53-2,889.55

Finding the Fourth Proportional to 5,127.58, 7,075.53 and 2,889.55

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Solution

The fourth proportional to 5,127.58, 7,075.53 and 2,889.55 is: 3,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.58 : 7,075.53 = 2,889.55 : x
  2. Step 2: Convert to fraction form
    5,127.58/7,075.53 = 2,889.55/x
  3. Step 3: Cross multiply
    5,127.58x = 7,075.53 × 2,889.55
  4. Step 4: Simplify right side
    5,127.58x = 20,445,097.71
  5. Step 5: Solve for x
    x = 20,445,097.71/5,127.58
  6. Step 6: Final answer
    x = 3,987.28

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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.