Home / 4,675.17-7,012.80-1,390.53

Finding the Fourth Proportional to 4,675.17, 7,012.80 and 1,390.53

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Solution

The fourth proportional to 4,675.17, 7,012.80 and 1,390.53 is: 2,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,675.17 : 7,012.80 = 1,390.53 : x
  2. Step 2: Convert to fraction form
    4,675.17/7,012.80 = 1,390.53/x
  3. Step 3: Cross multiply
    4,675.17x = 7,012.80 × 1,390.53
  4. Step 4: Simplify right side
    4,675.17x = 9,751,508.78
  5. Step 5: Solve for x
    x = 9,751,508.78/4,675.17
  6. Step 6: Final answer
    x = 2,085.81

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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.