Home / 2,989.66-4,117.33-2,925.08

Finding the Fourth Proportional to 2,989.66, 4,117.33 and 2,925.08

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Solution

The fourth proportional to 2,989.66, 4,117.33 and 2,925.08 is: 4,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.66 : 4,117.33 = 2,925.08 : x
  2. Step 2: Convert to fraction form
    2,989.66/4,117.33 = 2,925.08/x
  3. Step 3: Cross multiply
    2,989.66x = 4,117.33 × 2,925.08
  4. Step 4: Simplify right side
    2,989.66x = 12,043,519.64
  5. Step 5: Solve for x
    x = 12,043,519.64/2,989.66
  6. Step 6: Final answer
    x = 4,028.39

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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.