Home / 4,707.45-7,061.35-1,420.54

Finding the Fourth Proportional to 4,707.45, 7,061.35 and 1,420.54

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Solution

The fourth proportional to 4,707.45, 7,061.35 and 1,420.54 is: 2,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.45 : 7,061.35 = 1,420.54 : x
  2. Step 2: Convert to fraction form
    4,707.45/7,061.35 = 1,420.54/x
  3. Step 3: Cross multiply
    4,707.45x = 7,061.35 × 1,420.54
  4. Step 4: Simplify right side
    4,707.45x = 10,030,918.66
  5. Step 5: Solve for x
    x = 10,030,918.66/4,707.45
  6. Step 6: Final answer
    x = 2,130.86

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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.