Home / 1,730.32-2,389.48-1,726.80

Finding the Fourth Proportional to 1,730.32, 2,389.48 and 1,726.80

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Solution

The fourth proportional to 1,730.32, 2,389.48 and 1,726.80 is: 2,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.32 : 2,389.48 = 1,726.80 : x
  2. Step 2: Convert to fraction form
    1,730.32/2,389.48 = 1,726.80/x
  3. Step 3: Cross multiply
    1,730.32x = 2,389.48 × 1,726.80
  4. Step 4: Simplify right side
    1,730.32x = 4,126,154.06
  5. Step 5: Solve for x
    x = 4,126,154.06/1,730.32
  6. Step 6: Final answer
    x = 2,384.62

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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.