Home / 1,724.40-2,380-1,026.16

Finding the Fourth Proportional to 1,724.40, 2,380 and 1,026.16

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Solution

The fourth proportional to 1,724.40, 2,380 and 1,026.16 is: 1,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.40 : 2,380 = 1,026.16 : x
  2. Step 2: Convert to fraction form
    1,724.40/2,380 = 1,026.16/x
  3. Step 3: Cross multiply
    1,724.40x = 2,380 × 1,026.16
  4. Step 4: Simplify right side
    1,724.40x = 2,442,260.80
  5. Step 5: Solve for x
    x = 2,442,260.80/1,724.40
  6. Step 6: Final answer
    x = 1,416.30

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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.