Home / 5,240.32-7,230.70-3,846.40

Finding the Fourth Proportional to 5,240.32, 7,230.70 and 3,846.40

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Solution

The fourth proportional to 5,240.32, 7,230.70 and 3,846.40 is: 5,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.32 : 7,230.70 = 3,846.40 : x
  2. Step 2: Convert to fraction form
    5,240.32/7,230.70 = 3,846.40/x
  3. Step 3: Cross multiply
    5,240.32x = 7,230.70 × 3,846.40
  4. Step 4: Simplify right side
    5,240.32x = 27,812,164.48
  5. Step 5: Solve for x
    x = 27,812,164.48/5,240.32
  6. Step 6: Final answer
    x = 5,307.34

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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.