Home / 3,030.40-4,180.06-1,910.40

Finding the Fourth Proportional to 3,030.40, 4,180.06 and 1,910.40

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Solution

The fourth proportional to 3,030.40, 4,180.06 and 1,910.40 is: 2,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.40 : 4,180.06 = 1,910.40 : x
  2. Step 2: Convert to fraction form
    3,030.40/4,180.06 = 1,910.40/x
  3. Step 3: Cross multiply
    3,030.40x = 4,180.06 × 1,910.40
  4. Step 4: Simplify right side
    3,030.40x = 7,985,586.62
  5. Step 5: Solve for x
    x = 7,985,586.62/3,030.40
  6. Step 6: Final answer
    x = 2,635.16

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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.