Home / 1,869.89-2,580.67-1,124.23

Finding the Fourth Proportional to 1,869.89, 2,580.67 and 1,124.23

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Solution

The fourth proportional to 1,869.89, 2,580.67 and 1,124.23 is: 1,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.89 : 2,580.67 = 1,124.23 : x
  2. Step 2: Convert to fraction form
    1,869.89/2,580.67 = 1,124.23/x
  3. Step 3: Cross multiply
    1,869.89x = 2,580.67 × 1,124.23
  4. Step 4: Simplify right side
    1,869.89x = 2,901,266.63
  5. Step 5: Solve for x
    x = 2,901,266.63/1,869.89
  6. Step 6: Final answer
    x = 1,551.57

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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.