Home / 4,085.09-6,128.55-1,488

Finding the Fourth Proportional to 4,085.09, 6,128.55 and 1,488

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Solution

The fourth proportional to 4,085.09, 6,128.55 and 1,488 is: 2,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.09 : 6,128.55 = 1,488 : x
  2. Step 2: Convert to fraction form
    4,085.09/6,128.55 = 1,488/x
  3. Step 3: Cross multiply
    4,085.09x = 6,128.55 × 1,488
  4. Step 4: Simplify right side
    4,085.09x = 9,119,282.40
  5. Step 5: Solve for x
    x = 9,119,282.40/4,085.09
  6. Step 6: Final answer
    x = 2,232.34

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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.