Home / 1,869.73-2,580.11-1,030.39

Finding the Fourth Proportional to 1,869.73, 2,580.11 and 1,030.39

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Solution

The fourth proportional to 1,869.73, 2,580.11 and 1,030.39 is: 1,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.73 : 2,580.11 = 1,030.39 : x
  2. Step 2: Convert to fraction form
    1,869.73/2,580.11 = 1,030.39/x
  3. Step 3: Cross multiply
    1,869.73x = 2,580.11 × 1,030.39
  4. Step 4: Simplify right side
    1,869.73x = 2,658,524.86
  5. Step 5: Solve for x
    x = 2,658,524.86/1,869.73
  6. Step 6: Final answer
    x = 1,421.87

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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.