Home / 4,965.30-6,851.66-2,840.40

Finding the Fourth Proportional to 4,965.30, 6,851.66 and 2,840.40

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Solution

The fourth proportional to 4,965.30, 6,851.66 and 2,840.40 is: 3,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965.30 : 6,851.66 = 2,840.40 : x
  2. Step 2: Convert to fraction form
    4,965.30/6,851.66 = 2,840.40/x
  3. Step 3: Cross multiply
    4,965.30x = 6,851.66 × 2,840.40
  4. Step 4: Simplify right side
    4,965.30x = 19,461,440.86
  5. Step 5: Solve for x
    x = 19,461,440.86/4,965.30
  6. Step 6: Final answer
    x = 3,919.49

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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.