Home / 7,139.53-10,710.91-3,852.55

Finding the Fourth Proportional to 7,139.53, 10,710.91 and 3,852.55

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Solution

The fourth proportional to 7,139.53, 10,710.91 and 3,852.55 is: 5,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.53 : 10,710.91 = 3,852.55 : x
  2. Step 2: Convert to fraction form
    7,139.53/10,710.91 = 3,852.55/x
  3. Step 3: Cross multiply
    7,139.53x = 10,710.91 × 3,852.55
  4. Step 4: Simplify right side
    7,139.53x = 41,264,262.77
  5. Step 5: Solve for x
    x = 41,264,262.77/7,139.53
  6. Step 6: Final answer
    x = 5,779.69

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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.