Home / 3,590.90-5,386.34-1,125.73

Finding the Fourth Proportional to 3,590.90, 5,386.34 and 1,125.73

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Solution

The fourth proportional to 3,590.90, 5,386.34 and 1,125.73 is: 1,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.90 : 5,386.34 = 1,125.73 : x
  2. Step 2: Convert to fraction form
    3,590.90/5,386.34 = 1,125.73/x
  3. Step 3: Cross multiply
    3,590.90x = 5,386.34 × 1,125.73
  4. Step 4: Simplify right side
    3,590.90x = 6,063,564.53
  5. Step 5: Solve for x
    x = 6,063,564.53/3,590.90
  6. Step 6: Final answer
    x = 1,688.59

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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.