Home / 4,985.74-6,878.67-3,218.52

Finding the Fourth Proportional to 4,985.74, 6,878.67 and 3,218.52

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Solution

The fourth proportional to 4,985.74, 6,878.67 and 3,218.52 is: 4,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.74 : 6,878.67 = 3,218.52 : x
  2. Step 2: Convert to fraction form
    4,985.74/6,878.67 = 3,218.52/x
  3. Step 3: Cross multiply
    4,985.74x = 6,878.67 × 3,218.52
  4. Step 4: Simplify right side
    4,985.74x = 22,139,136.97
  5. Step 5: Solve for x
    x = 22,139,136.97/4,985.74
  6. Step 6: Final answer
    x = 4,440.49

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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.