Home / 1,404.11-1,938.37-1,088.66

Finding the Fourth Proportional to 1,404.11, 1,938.37 and 1,088.66

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Solution

The fourth proportional to 1,404.11, 1,938.37 and 1,088.66 is: 1,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404.11 : 1,938.37 = 1,088.66 : x
  2. Step 2: Convert to fraction form
    1,404.11/1,938.37 = 1,088.66/x
  3. Step 3: Cross multiply
    1,404.11x = 1,938.37 × 1,088.66
  4. Step 4: Simplify right side
    1,404.11x = 2,110,225.88
  5. Step 5: Solve for x
    x = 2,110,225.88/1,404.11
  6. Step 6: Final answer
    x = 1,502.89

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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.