Home / 1,196.28-1,653.48-1,055.40

Finding the Fourth Proportional to 1,196.28, 1,653.48 and 1,055.40

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Solution

The fourth proportional to 1,196.28, 1,653.48 and 1,055.40 is: 1,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.28 : 1,653.48 = 1,055.40 : x
  2. Step 2: Convert to fraction form
    1,196.28/1,653.48 = 1,055.40/x
  3. Step 3: Cross multiply
    1,196.28x = 1,653.48 × 1,055.40
  4. Step 4: Simplify right side
    1,196.28x = 1,745,082.79
  5. Step 5: Solve for x
    x = 1,745,082.79/1,196.28
  6. Step 6: Final answer
    x = 1,458.76

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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.