Home / 2,910.40-4,365.60-2,894.20

Finding the Fourth Proportional to 2,910.40, 4,365.60 and 2,894.20

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Solution

The fourth proportional to 2,910.40, 4,365.60 and 2,894.20 is: 4,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.40 : 4,365.60 = 2,894.20 : x
  2. Step 2: Convert to fraction form
    2,910.40/4,365.60 = 2,894.20/x
  3. Step 3: Cross multiply
    2,910.40x = 4,365.60 × 2,894.20
  4. Step 4: Simplify right side
    2,910.40x = 12,634,919.52
  5. Step 5: Solve for x
    x = 12,634,919.52/2,910.40
  6. Step 6: Final answer
    x = 4,341.30

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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.