Home / 4,319.50-6,478.55-1,545.65

Finding the Fourth Proportional to 4,319.50, 6,478.55 and 1,545.65

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Solution

The fourth proportional to 4,319.50, 6,478.55 and 1,545.65 is: 2,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.50 : 6,478.55 = 1,545.65 : x
  2. Step 2: Convert to fraction form
    4,319.50/6,478.55 = 1,545.65/x
  3. Step 3: Cross multiply
    4,319.50x = 6,478.55 × 1,545.65
  4. Step 4: Simplify right side
    4,319.50x = 10,013,570.81
  5. Step 5: Solve for x
    x = 10,013,570.81/4,319.50
  6. Step 6: Final answer
    x = 2,318.22

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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.