Home / 1,869.45-2,579.29-1,123.14

Finding the Fourth Proportional to 1,869.45, 2,579.29 and 1,123.14

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Solution

The fourth proportional to 1,869.45, 2,579.29 and 1,123.14 is: 1,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.45 : 2,579.29 = 1,123.14 : x
  2. Step 2: Convert to fraction form
    1,869.45/2,579.29 = 1,123.14/x
  3. Step 3: Cross multiply
    1,869.45x = 2,579.29 × 1,123.14
  4. Step 4: Simplify right side
    1,869.45x = 2,896,909.70
  5. Step 5: Solve for x
    x = 2,896,909.70/1,869.45
  6. Step 6: Final answer
    x = 1,549.60

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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.