Home / 4,101.13-6,152.70-1,909.40

Finding the Fourth Proportional to 4,101.13, 6,152.70 and 1,909.40

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Solution

The fourth proportional to 4,101.13, 6,152.70 and 1,909.40 is: 2,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.13 : 6,152.70 = 1,909.40 : x
  2. Step 2: Convert to fraction form
    4,101.13/6,152.70 = 1,909.40/x
  3. Step 3: Cross multiply
    4,101.13x = 6,152.70 × 1,909.40
  4. Step 4: Simplify right side
    4,101.13x = 11,747,965.38
  5. Step 5: Solve for x
    x = 11,747,965.38/4,101.13
  6. Step 6: Final answer
    x = 2,864.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.