Home / 1,885.10-2,601.38-1,045.78

Finding the Fourth Proportional to 1,885.10, 2,601.38 and 1,045.78

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Solution

The fourth proportional to 1,885.10, 2,601.38 and 1,045.78 is: 1,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.10 : 2,601.38 = 1,045.78 : x
  2. Step 2: Convert to fraction form
    1,885.10/2,601.38 = 1,045.78/x
  3. Step 3: Cross multiply
    1,885.10x = 2,601.38 × 1,045.78
  4. Step 4: Simplify right side
    1,885.10x = 2,720,471.18
  5. Step 5: Solve for x
    x = 2,720,471.18/1,885.10
  6. Step 6: Final answer
    x = 1,443.14

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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.