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Finding the Fourth Proportional to 1,874.15, 2,810.98 and 575.51

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Solution

The fourth proportional to 1,874.15, 2,810.98 and 575.51 is: 863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.15 : 2,810.98 = 575.51 : x
  2. Step 2: Convert to fraction form
    1,874.15/2,810.98 = 575.51/x
  3. Step 3: Cross multiply
    1,874.15x = 2,810.98 × 575.51
  4. Step 4: Simplify right side
    1,874.15x = 1,617,731.61
  5. Step 5: Solve for x
    x = 1,617,731.61/1,874.15
  6. Step 6: Final answer
    x = 863.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.