Home / 1,298.36-1,935.55-1,194.68

Finding the Fourth Proportional to 1,298.36, 1,935.55 and 1,194.68

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Solution

The fourth proportional to 1,298.36, 1,935.55 and 1,194.68 is: 1,780.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.36 : 1,935.55 = 1,194.68 : x
  2. Step 2: Convert to fraction form
    1,298.36/1,935.55 = 1,194.68/x
  3. Step 3: Cross multiply
    1,298.36x = 1,935.55 × 1,194.68
  4. Step 4: Simplify right side
    1,298.36x = 2,312,362.87
  5. Step 5: Solve for x
    x = 2,312,362.87/1,298.36
  6. Step 6: Final answer
    x = 1,780.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.