Home / 3,545.52-5,315.67-1,789.65

Finding the Fourth Proportional to 3,545.52, 5,315.67 and 1,789.65

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Solution

The fourth proportional to 3,545.52, 5,315.67 and 1,789.65 is: 2,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.52 : 5,315.67 = 1,789.65 : x
  2. Step 2: Convert to fraction form
    3,545.52/5,315.67 = 1,789.65/x
  3. Step 3: Cross multiply
    3,545.52x = 5,315.67 × 1,789.65
  4. Step 4: Simplify right side
    3,545.52x = 9,513,188.82
  5. Step 5: Solve for x
    x = 9,513,188.82/3,545.52
  6. Step 6: Final answer
    x = 2,683.16

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1.5x scale

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.