Home / 5,487.48-8,231.76-1,590.84

Finding the Fourth Proportional to 5,487.48, 8,231.76 and 1,590.84

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Solution

The fourth proportional to 5,487.48, 8,231.76 and 1,590.84 is: 2,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.48 : 8,231.76 = 1,590.84 : x
  2. Step 2: Convert to fraction form
    5,487.48/8,231.76 = 1,590.84/x
  3. Step 3: Cross multiply
    5,487.48x = 8,231.76 × 1,590.84
  4. Step 4: Simplify right side
    5,487.48x = 13,095,413.08
  5. Step 5: Solve for x
    x = 13,095,413.08/5,487.48
  6. Step 6: Final answer
    x = 2,386.42

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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.