Home / 2,909.28-4,368.76-1,910.28

Finding the Fourth Proportional to 2,909.28, 4,368.76 and 1,910.28

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Solution

The fourth proportional to 2,909.28, 4,368.76 and 1,910.28 is: 2,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.28 : 4,368.76 = 1,910.28 : x
  2. Step 2: Convert to fraction form
    2,909.28/4,368.76 = 1,910.28/x
  3. Step 3: Cross multiply
    2,909.28x = 4,368.76 × 1,910.28
  4. Step 4: Simplify right side
    2,909.28x = 8,345,554.85
  5. Step 5: Solve for x
    x = 8,345,554.85/2,909.28
  6. Step 6: Final answer
    x = 2,868.60

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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.