Home / 4,478.09-6,180-2,488.69

Finding the Fourth Proportional to 4,478.09, 6,180 and 2,488.69

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Solution

The fourth proportional to 4,478.09, 6,180 and 2,488.69 is: 3,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.09 : 6,180 = 2,488.69 : x
  2. Step 2: Convert to fraction form
    4,478.09/6,180 = 2,488.69/x
  3. Step 3: Cross multiply
    4,478.09x = 6,180 × 2,488.69
  4. Step 4: Simplify right side
    4,478.09x = 15,380,073.30
  5. Step 5: Solve for x
    x = 15,380,073.30/4,478.09
  6. Step 6: Final answer
    x = 3,434.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.