Home / 7,376.31-10,179.51-4,189.86

Finding the Fourth Proportional to 7,376.31, 10,179.51 and 4,189.86

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Solution

The fourth proportional to 7,376.31, 10,179.51 and 4,189.86 is: 5,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.31 : 10,179.51 = 4,189.86 : x
  2. Step 2: Convert to fraction form
    7,376.31/10,179.51 = 4,189.86/x
  3. Step 3: Cross multiply
    7,376.31x = 10,179.51 × 4,189.86
  4. Step 4: Simplify right side
    7,376.31x = 42,650,721.77
  5. Step 5: Solve for x
    x = 42,650,721.77/7,376.31
  6. Step 6: Final answer
    x = 5,782.12

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1.5x scale

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.