Home / 3,405.10-5,132.80-3,124.30

Finding the Fourth Proportional to 3,405.10, 5,132.80 and 3,124.30

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Solution

The fourth proportional to 3,405.10, 5,132.80 and 3,124.30 is: 4,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.10 : 5,132.80 = 3,124.30 : x
  2. Step 2: Convert to fraction form
    3,405.10/5,132.80 = 3,124.30/x
  3. Step 3: Cross multiply
    3,405.10x = 5,132.80 × 3,124.30
  4. Step 4: Simplify right side
    3,405.10x = 16,036,407.04
  5. Step 5: Solve for x
    x = 16,036,407.04/3,405.10
  6. Step 6: Final answer
    x = 4,709.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.