Home / 1,959.79-2,704.55-1,075.59

Finding the Fourth Proportional to 1,959.79, 2,704.55 and 1,075.59

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Solution

The fourth proportional to 1,959.79, 2,704.55 and 1,075.59 is: 1,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.79 : 2,704.55 = 1,075.59 : x
  2. Step 2: Convert to fraction form
    1,959.79/2,704.55 = 1,075.59/x
  3. Step 3: Cross multiply
    1,959.79x = 2,704.55 × 1,075.59
  4. Step 4: Simplify right side
    1,959.79x = 2,908,986.93
  5. Step 5: Solve for x
    x = 2,908,986.93/1,959.79
  6. Step 6: Final answer
    x = 1,484.34

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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.