Home / 3,880.40-5,357.49-2,623.17

Finding the Fourth Proportional to 3,880.40, 5,357.49 and 2,623.17

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Solution

The fourth proportional to 3,880.40, 5,357.49 and 2,623.17 is: 3,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.40 : 5,357.49 = 2,623.17 : x
  2. Step 2: Convert to fraction form
    3,880.40/5,357.49 = 2,623.17/x
  3. Step 3: Cross multiply
    3,880.40x = 5,357.49 × 2,623.17
  4. Step 4: Simplify right side
    3,880.40x = 14,053,607.04
  5. Step 5: Solve for x
    x = 14,053,607.04/3,880.40
  6. Step 6: Final answer
    x = 3,621.69

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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.