Home / 1,935.70-2,903.61-1,113.59

Finding the Fourth Proportional to 1,935.70, 2,903.61 and 1,113.59

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Solution

The fourth proportional to 1,935.70, 2,903.61 and 1,113.59 is: 1,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.70 : 2,903.61 = 1,113.59 : x
  2. Step 2: Convert to fraction form
    1,935.70/2,903.61 = 1,113.59/x
  3. Step 3: Cross multiply
    1,935.70x = 2,903.61 × 1,113.59
  4. Step 4: Simplify right side
    1,935.70x = 3,233,431.06
  5. Step 5: Solve for x
    x = 3,233,431.06/1,935.70
  6. Step 6: Final answer
    x = 1,670.42

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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.