Home / 1,417.06-2,125.86-442.96

Finding the Fourth Proportional to 1,417.06, 2,125.86 and 442.96

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Solution

The fourth proportional to 1,417.06, 2,125.86 and 442.96 is: 664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.06 : 2,125.86 = 442.96 : x
  2. Step 2: Convert to fraction form
    1,417.06/2,125.86 = 442.96/x
  3. Step 3: Cross multiply
    1,417.06x = 2,125.86 × 442.96
  4. Step 4: Simplify right side
    1,417.06x = 941,670.95
  5. Step 5: Solve for x
    x = 941,670.95/1,417.06
  6. Step 6: Final answer
    x = 664.52

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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.