Home / 1,416.16-2,124.42-442.18

Finding the Fourth Proportional to 1,416.16, 2,124.42 and 442.18

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Solution

The fourth proportional to 1,416.16, 2,124.42 and 442.18 is: 663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.16 : 2,124.42 = 442.18 : x
  2. Step 2: Convert to fraction form
    1,416.16/2,124.42 = 442.18/x
  3. Step 3: Cross multiply
    1,416.16x = 2,124.42 × 442.18
  4. Step 4: Simplify right side
    1,416.16x = 939,376.04
  5. Step 5: Solve for x
    x = 939,376.04/1,416.16
  6. Step 6: Final answer
    x = 663.33

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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.