Home / 3,159.40-4,359.71-1,814.58

Finding the Fourth Proportional to 3,159.40, 4,359.71 and 1,814.58

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Solution

The fourth proportional to 3,159.40, 4,359.71 and 1,814.58 is: 2,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.40 : 4,359.71 = 1,814.58 : x
  2. Step 2: Convert to fraction form
    3,159.40/4,359.71 = 1,814.58/x
  3. Step 3: Cross multiply
    3,159.40x = 4,359.71 × 1,814.58
  4. Step 4: Simplify right side
    3,159.40x = 7,911,047.11
  5. Step 5: Solve for x
    x = 7,911,047.11/3,159.40
  6. Step 6: Final answer
    x = 2,503.97

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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.