Home / 1,917.31-2,875.98-530.73

Finding the Fourth Proportional to 1,917.31, 2,875.98 and 530.73

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Solution

The fourth proportional to 1,917.31, 2,875.98 and 530.73 is: 796.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.31 : 2,875.98 = 530.73 : x
  2. Step 2: Convert to fraction form
    1,917.31/2,875.98 = 530.73/x
  3. Step 3: Cross multiply
    1,917.31x = 2,875.98 × 530.73
  4. Step 4: Simplify right side
    1,917.31x = 1,526,368.87
  5. Step 5: Solve for x
    x = 1,526,368.87/1,917.31
  6. Step 6: Final answer
    x = 796.10

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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.