Home / 1,860.24-2,789.13-1,038.60

Finding the Fourth Proportional to 1,860.24, 2,789.13 and 1,038.60

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Solution

The fourth proportional to 1,860.24, 2,789.13 and 1,038.60 is: 1,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.24 : 2,789.13 = 1,038.60 : x
  2. Step 2: Convert to fraction form
    1,860.24/2,789.13 = 1,038.60/x
  3. Step 3: Cross multiply
    1,860.24x = 2,789.13 × 1,038.60
  4. Step 4: Simplify right side
    1,860.24x = 2,896,790.42
  5. Step 5: Solve for x
    x = 2,896,790.42/1,860.24
  6. Step 6: Final answer
    x = 1,557.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.