Home / 1,827.29-2,521.07-1,118.40

Finding the Fourth Proportional to 1,827.29, 2,521.07 and 1,118.40

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Solution

The fourth proportional to 1,827.29, 2,521.07 and 1,118.40 is: 1,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.29 : 2,521.07 = 1,118.40 : x
  2. Step 2: Convert to fraction form
    1,827.29/2,521.07 = 1,118.40/x
  3. Step 3: Cross multiply
    1,827.29x = 2,521.07 × 1,118.40
  4. Step 4: Simplify right side
    1,827.29x = 2,819,546.49
  5. Step 5: Solve for x
    x = 2,819,546.49/1,827.29
  6. Step 6: Final answer
    x = 1,543.02

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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.