Home / 5,126.79-7,075.01-2,888.46

Finding the Fourth Proportional to 5,126.79, 7,075.01 and 2,888.46

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Solution

The fourth proportional to 5,126.79, 7,075.01 and 2,888.46 is: 3,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.79 : 7,075.01 = 2,888.46 : x
  2. Step 2: Convert to fraction form
    5,126.79/7,075.01 = 2,888.46/x
  3. Step 3: Cross multiply
    5,126.79x = 7,075.01 × 2,888.46
  4. Step 4: Simplify right side
    5,126.79x = 20,435,883.38
  5. Step 5: Solve for x
    x = 20,435,883.38/5,126.79
  6. Step 6: Final answer
    x = 3,986.10

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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.