Home / 4,985.33-6,882.70-4,431.80

Finding the Fourth Proportional to 4,985.33, 6,882.70 and 4,431.80

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Solution

The fourth proportional to 4,985.33, 6,882.70 and 4,431.80 is: 6,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.33 : 6,882.70 = 4,431.80 : x
  2. Step 2: Convert to fraction form
    4,985.33/6,882.70 = 4,431.80/x
  3. Step 3: Cross multiply
    4,985.33x = 6,882.70 × 4,431.80
  4. Step 4: Simplify right side
    4,985.33x = 30,502,715.45
  5. Step 5: Solve for x
    x = 30,502,715.45/4,985.33
  6. Step 6: Final answer
    x = 6,118.50

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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.