Home / 2,416.12-3,333.56-1,421

Finding the Fourth Proportional to 2,416.12, 3,333.56 and 1,421

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Solution

The fourth proportional to 2,416.12, 3,333.56 and 1,421 is: 1,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.12 : 3,333.56 = 1,421 : x
  2. Step 2: Convert to fraction form
    2,416.12/3,333.56 = 1,421/x
  3. Step 3: Cross multiply
    2,416.12x = 3,333.56 × 1,421
  4. Step 4: Simplify right side
    2,416.12x = 4,736,988.76
  5. Step 5: Solve for x
    x = 4,736,988.76/2,416.12
  6. Step 6: Final answer
    x = 1,960.58

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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.