Home / 1,918.74-2,875.59-1,658.73

Finding the Fourth Proportional to 1,918.74, 2,875.59 and 1,658.73

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Solution

The fourth proportional to 1,918.74, 2,875.59 and 1,658.73 is: 2,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.74 : 2,875.59 = 1,658.73 : x
  2. Step 2: Convert to fraction form
    1,918.74/2,875.59 = 1,658.73/x
  3. Step 3: Cross multiply
    1,918.74x = 2,875.59 × 1,658.73
  4. Step 4: Simplify right side
    1,918.74x = 4,769,827.40
  5. Step 5: Solve for x
    x = 4,769,827.40/1,918.74
  6. Step 6: Final answer
    x = 2,485.92

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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.