Home / 5,880.40-8,110.19-5,170.76

Finding the Fourth Proportional to 5,880.40, 8,110.19 and 5,170.76

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Solution

The fourth proportional to 5,880.40, 8,110.19 and 5,170.76 is: 7,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.40 : 8,110.19 = 5,170.76 : x
  2. Step 2: Convert to fraction form
    5,880.40/8,110.19 = 5,170.76/x
  3. Step 3: Cross multiply
    5,880.40x = 8,110.19 × 5,170.76
  4. Step 4: Simplify right side
    5,880.40x = 41,935,848.83
  5. Step 5: Solve for x
    x = 41,935,848.83/5,880.40
  6. Step 6: Final answer
    x = 7,131.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.