Home / 3,030.42-4,180.04-1,910.40

Finding the Fourth Proportional to 3,030.42, 4,180.04 and 1,910.40

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Solution

The fourth proportional to 3,030.42, 4,180.04 and 1,910.40 is: 2,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.42 : 4,180.04 = 1,910.40 : x
  2. Step 2: Convert to fraction form
    3,030.42/4,180.04 = 1,910.40/x
  3. Step 3: Cross multiply
    3,030.42x = 4,180.04 × 1,910.40
  4. Step 4: Simplify right side
    3,030.42x = 7,985,538.86
  5. Step 5: Solve for x
    x = 7,985,538.86/3,030.42
  6. Step 6: Final answer
    x = 2,635.13

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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.