Home / 4,920.48-6,788.61-2,931.39

Finding the Fourth Proportional to 4,920.48, 6,788.61 and 2,931.39

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Solution

The fourth proportional to 4,920.48, 6,788.61 and 2,931.39 is: 4,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.48 : 6,788.61 = 2,931.39 : x
  2. Step 2: Convert to fraction form
    4,920.48/6,788.61 = 2,931.39/x
  3. Step 3: Cross multiply
    4,920.48x = 6,788.61 × 2,931.39
  4. Step 4: Simplify right side
    4,920.48x = 19,900,063.47
  5. Step 5: Solve for x
    x = 19,900,063.47/4,920.48
  6. Step 6: Final answer
    x = 4,044.33

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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.