Home / 5,891.31-8,130.38-4,123.49

Finding the Fourth Proportional to 5,891.31, 8,130.38 and 4,123.49

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Solution

The fourth proportional to 5,891.31, 8,130.38 and 4,123.49 is: 5,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.31 : 8,130.38 = 4,123.49 : x
  2. Step 2: Convert to fraction form
    5,891.31/8,130.38 = 4,123.49/x
  3. Step 3: Cross multiply
    5,891.31x = 8,130.38 × 4,123.49
  4. Step 4: Simplify right side
    5,891.31x = 33,525,479.36
  5. Step 5: Solve for x
    x = 33,525,479.36/5,891.31
  6. Step 6: Final answer
    x = 5,690.67

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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.