Home / 1,955.67-2,934.56-1,421.45

Finding the Fourth Proportional to 1,955.67, 2,934.56 and 1,421.45

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Solution

The fourth proportional to 1,955.67, 2,934.56 and 1,421.45 is: 2,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.67 : 2,934.56 = 1,421.45 : x
  2. Step 2: Convert to fraction form
    1,955.67/2,934.56 = 1,421.45/x
  3. Step 3: Cross multiply
    1,955.67x = 2,934.56 × 1,421.45
  4. Step 4: Simplify right side
    1,955.67x = 4,171,330.20
  5. Step 5: Solve for x
    x = 4,171,330.20/1,955.67
  6. Step 6: Final answer
    x = 2,132.94

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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.