Home / 4,985.51-6,884.67-3,125.75

Finding the Fourth Proportional to 4,985.51, 6,884.67 and 3,125.75

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Solution

The fourth proportional to 4,985.51, 6,884.67 and 3,125.75 is: 4,316.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.51 : 6,884.67 = 3,125.75 : x
  2. Step 2: Convert to fraction form
    4,985.51/6,884.67 = 3,125.75/x
  3. Step 3: Cross multiply
    4,985.51x = 6,884.67 × 3,125.75
  4. Step 4: Simplify right side
    4,985.51x = 21,519,722.83
  5. Step 5: Solve for x
    x = 21,519,722.83/4,985.51
  6. Step 6: Final answer
    x = 4,316.46

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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.