Home / 2,938.58-4,407.65-1,378.93

Finding the Fourth Proportional to 2,938.58, 4,407.65 and 1,378.93

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Solution

The fourth proportional to 2,938.58, 4,407.65 and 1,378.93 is: 2,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.58 : 4,407.65 = 1,378.93 : x
  2. Step 2: Convert to fraction form
    2,938.58/4,407.65 = 1,378.93/x
  3. Step 3: Cross multiply
    2,938.58x = 4,407.65 × 1,378.93
  4. Step 4: Simplify right side
    2,938.58x = 6,077,833.92
  5. Step 5: Solve for x
    x = 6,077,833.92/2,938.58
  6. Step 6: Final answer
    x = 2,068.29

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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.