Home / 1,723.28-2,378.65-1,635.10

Finding the Fourth Proportional to 1,723.28, 2,378.65 and 1,635.10

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Solution

The fourth proportional to 1,723.28, 2,378.65 and 1,635.10 is: 2,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.28 : 2,378.65 = 1,635.10 : x
  2. Step 2: Convert to fraction form
    1,723.28/2,378.65 = 1,635.10/x
  3. Step 3: Cross multiply
    1,723.28x = 2,378.65 × 1,635.10
  4. Step 4: Simplify right side
    1,723.28x = 3,889,337.03
  5. Step 5: Solve for x
    x = 3,889,337.03/1,723.28
  6. Step 6: Final answer
    x = 2,256.95

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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.