Home / 1,535.97-2,120.40-946.83

Finding the Fourth Proportional to 1,535.97, 2,120.40 and 946.83

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Solution

The fourth proportional to 1,535.97, 2,120.40 and 946.83 is: 1,307.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.97 : 2,120.40 = 946.83 : x
  2. Step 2: Convert to fraction form
    1,535.97/2,120.40 = 946.83/x
  3. Step 3: Cross multiply
    1,535.97x = 2,120.40 × 946.83
  4. Step 4: Simplify right side
    1,535.97x = 2,007,658.33
  5. Step 5: Solve for x
    x = 2,007,658.33/1,535.97
  6. Step 6: Final answer
    x = 1,307.09

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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.