Home / 10,378.58-15,570.36-2,982.89

Finding the Fourth Proportional to 10,378.58, 15,570.36 and 2,982.89

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Solution

The fourth proportional to 10,378.58, 15,570.36 and 2,982.89 is: 4,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.58 : 15,570.36 = 2,982.89 : x
  2. Step 2: Convert to fraction form
    10,378.58/15,570.36 = 2,982.89/x
  3. Step 3: Cross multiply
    10,378.58x = 15,570.36 × 2,982.89
  4. Step 4: Simplify right side
    10,378.58x = 46,444,671.14
  5. Step 5: Solve for x
    x = 46,444,671.14/10,378.58
  6. Step 6: Final answer
    x = 4,475.05

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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.