Home / 7,342.31-11,013.50-2,148.19

Finding the Fourth Proportional to 7,342.31, 11,013.50 and 2,148.19

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Solution

The fourth proportional to 7,342.31, 11,013.50 and 2,148.19 is: 3,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.31 : 11,013.50 = 2,148.19 : x
  2. Step 2: Convert to fraction form
    7,342.31/11,013.50 = 2,148.19/x
  3. Step 3: Cross multiply
    7,342.31x = 11,013.50 × 2,148.19
  4. Step 4: Simplify right side
    7,342.31x = 23,659,068.40
  5. Step 5: Solve for x
    x = 23,659,068.40/7,342.31
  6. Step 6: Final answer
    x = 3,222.29

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1.5x scale

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.