Home / 4,085.81-6,129.63-1,488.75

Finding the Fourth Proportional to 4,085.81, 6,129.63 and 1,488.75

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Solution

The fourth proportional to 4,085.81, 6,129.63 and 1,488.75 is: 2,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.81 : 6,129.63 = 1,488.75 : x
  2. Step 2: Convert to fraction form
    4,085.81/6,129.63 = 1,488.75/x
  3. Step 3: Cross multiply
    4,085.81x = 6,129.63 × 1,488.75
  4. Step 4: Simplify right side
    4,085.81x = 9,125,486.66
  5. Step 5: Solve for x
    x = 9,125,486.66/4,085.81
  6. Step 6: Final answer
    x = 2,233.46

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1.5x scale

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.