Home / 1,698.45-2,545.61-1,235.07

Finding the Fourth Proportional to 1,698.45, 2,545.61 and 1,235.07

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Solution

The fourth proportional to 1,698.45, 2,545.61 and 1,235.07 is: 1,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.45 : 2,545.61 = 1,235.07 : x
  2. Step 2: Convert to fraction form
    1,698.45/2,545.61 = 1,235.07/x
  3. Step 3: Cross multiply
    1,698.45x = 2,545.61 × 1,235.07
  4. Step 4: Simplify right side
    1,698.45x = 3,144,000.37
  5. Step 5: Solve for x
    x = 3,144,000.37/1,698.45
  6. Step 6: Final answer
    x = 1,851.10

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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.