Home / 1,411.30-2,116.93-437.47

Finding the Fourth Proportional to 1,411.30, 2,116.93 and 437.47

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Solution

The fourth proportional to 1,411.30, 2,116.93 and 437.47 is: 656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.30 : 2,116.93 = 437.47 : x
  2. Step 2: Convert to fraction form
    1,411.30/2,116.93 = 437.47/x
  3. Step 3: Cross multiply
    1,411.30x = 2,116.93 × 437.47
  4. Step 4: Simplify right side
    1,411.30x = 926,093.37
  5. Step 5: Solve for x
    x = 926,093.37/1,411.30
  6. Step 6: Final answer
    x = 656.20

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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.