Home / 4,965-6,851.88-2,840.91

Finding the Fourth Proportional to 4,965, 6,851.88 and 2,840.91

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Solution

The fourth proportional to 4,965, 6,851.88 and 2,840.91 is: 3,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,965 : 6,851.88 = 2,840.91 : x
  2. Step 2: Convert to fraction form
    4,965/6,851.88 = 2,840.91/x
  3. Step 3: Cross multiply
    4,965x = 6,851.88 × 2,840.91
  4. Step 4: Simplify right side
    4,965x = 19,465,574.41
  5. Step 5: Solve for x
    x = 19,465,574.41/4,965
  6. Step 6: Final answer
    x = 3,920.56

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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.