Home / 1,869.91-2,580.42-1,030.60

Finding the Fourth Proportional to 1,869.91, 2,580.42 and 1,030.60

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Solution

The fourth proportional to 1,869.91, 2,580.42 and 1,030.60 is: 1,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.91 : 2,580.42 = 1,030.60 : x
  2. Step 2: Convert to fraction form
    1,869.91/2,580.42 = 1,030.60/x
  3. Step 3: Cross multiply
    1,869.91x = 2,580.42 × 1,030.60
  4. Step 4: Simplify right side
    1,869.91x = 2,659,387.94
  5. Step 5: Solve for x
    x = 2,659,387.94/1,869.91
  6. Step 6: Final answer
    x = 1,422.20

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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.