Home / 2,678.52-4,017.78-2,507.64

Finding the Fourth Proportional to 2,678.52, 4,017.78 and 2,507.64

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Solution

The fourth proportional to 2,678.52, 4,017.78 and 2,507.64 is: 3,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.52 : 4,017.78 = 2,507.64 : x
  2. Step 2: Convert to fraction form
    2,678.52/4,017.78 = 2,507.64/x
  3. Step 3: Cross multiply
    2,678.52x = 4,017.78 × 2,507.64
  4. Step 4: Simplify right side
    2,678.52x = 10,075,145.84
  5. Step 5: Solve for x
    x = 10,075,145.84/2,678.52
  6. Step 6: Final answer
    x = 3,761.46

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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.