Home / 6,619.31-9,931.53-2,918.93

Finding the Fourth Proportional to 6,619.31, 9,931.53 and 2,918.93

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Solution

The fourth proportional to 6,619.31, 9,931.53 and 2,918.93 is: 4,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.31 : 9,931.53 = 2,918.93 : x
  2. Step 2: Convert to fraction form
    6,619.31/9,931.53 = 2,918.93/x
  3. Step 3: Cross multiply
    6,619.31x = 9,931.53 × 2,918.93
  4. Step 4: Simplify right side
    6,619.31x = 28,989,391.21
  5. Step 5: Solve for x
    x = 28,989,391.21/6,619.31
  6. Step 6: Final answer
    x = 4,379.52

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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.