Home / 1,869.71-2,580.35-1,073.11

Finding the Fourth Proportional to 1,869.71, 2,580.35 and 1,073.11

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Solution

The fourth proportional to 1,869.71, 2,580.35 and 1,073.11 is: 1,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.71 : 2,580.35 = 1,073.11 : x
  2. Step 2: Convert to fraction form
    1,869.71/2,580.35 = 1,073.11/x
  3. Step 3: Cross multiply
    1,869.71x = 2,580.35 × 1,073.11
  4. Step 4: Simplify right side
    1,869.71x = 2,768,981.12
  5. Step 5: Solve for x
    x = 2,768,981.12/1,869.71
  6. Step 6: Final answer
    x = 1,480.97

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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.