Home / 5,145.40-7,099.26-3,048.76

Finding the Fourth Proportional to 5,145.40, 7,099.26 and 3,048.76

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Solution

The fourth proportional to 5,145.40, 7,099.26 and 3,048.76 is: 4,206.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.40 : 7,099.26 = 3,048.76 : x
  2. Step 2: Convert to fraction form
    5,145.40/7,099.26 = 3,048.76/x
  3. Step 3: Cross multiply
    5,145.40x = 7,099.26 × 3,048.76
  4. Step 4: Simplify right side
    5,145.40x = 21,643,939.92
  5. Step 5: Solve for x
    x = 21,643,939.92/5,145.40
  6. Step 6: Final answer
    x = 4,206.46

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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.