Home / 2,918.13-4,026.60-1,658.79

Finding the Fourth Proportional to 2,918.13, 4,026.60 and 1,658.79

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Solution

The fourth proportional to 2,918.13, 4,026.60 and 1,658.79 is: 2,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.13 : 4,026.60 = 1,658.79 : x
  2. Step 2: Convert to fraction form
    2,918.13/4,026.60 = 1,658.79/x
  3. Step 3: Cross multiply
    2,918.13x = 4,026.60 × 1,658.79
  4. Step 4: Simplify right side
    2,918.13x = 6,679,283.81
  5. Step 5: Solve for x
    x = 6,679,283.81/2,918.13
  6. Step 6: Final answer
    x = 2,288.89

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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.