Home / 1,237.16-1,698.20-1,125.99

Finding the Fourth Proportional to 1,237.16, 1,698.20 and 1,125.99

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Solution

The fourth proportional to 1,237.16, 1,698.20 and 1,125.99 is: 1,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.16 : 1,698.20 = 1,125.99 : x
  2. Step 2: Convert to fraction form
    1,237.16/1,698.20 = 1,125.99/x
  3. Step 3: Cross multiply
    1,237.16x = 1,698.20 × 1,125.99
  4. Step 4: Simplify right side
    1,237.16x = 1,912,150.59
  5. Step 5: Solve for x
    x = 1,912,150.59/1,237.16
  6. Step 6: Final answer
    x = 1,545.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.