Home / 5,383.67-8,029.63-5,290.21

Finding the Fourth Proportional to 5,383.67, 8,029.63 and 5,290.21

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Solution

The fourth proportional to 5,383.67, 8,029.63 and 5,290.21 is: 7,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.67 : 8,029.63 = 5,290.21 : x
  2. Step 2: Convert to fraction form
    5,383.67/8,029.63 = 5,290.21/x
  3. Step 3: Cross multiply
    5,383.67x = 8,029.63 × 5,290.21
  4. Step 4: Simplify right side
    5,383.67x = 42,478,445.57
  5. Step 5: Solve for x
    x = 42,478,445.57/5,383.67
  6. Step 6: Final answer
    x = 7,890.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.