Home / 4,985.58-6,877.20-3,119.34

Finding the Fourth Proportional to 4,985.58, 6,877.20 and 3,119.34

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Solution

The fourth proportional to 4,985.58, 6,877.20 and 3,119.34 is: 4,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.58 : 6,877.20 = 3,119.34 : x
  2. Step 2: Convert to fraction form
    4,985.58/6,877.20 = 3,119.34/x
  3. Step 3: Cross multiply
    4,985.58x = 6,877.20 × 3,119.34
  4. Step 4: Simplify right side
    4,985.58x = 21,452,325.05
  5. Step 5: Solve for x
    x = 21,452,325.05/4,985.58
  6. Step 6: Final answer
    x = 4,302.87

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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.