Home / 5,320.40-8,011.54-3,943.50

Finding the Fourth Proportional to 5,320.40, 8,011.54 and 3,943.50

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Solution

The fourth proportional to 5,320.40, 8,011.54 and 3,943.50 is: 5,938.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.40 : 8,011.54 = 3,943.50 : x
  2. Step 2: Convert to fraction form
    5,320.40/8,011.54 = 3,943.50/x
  3. Step 3: Cross multiply
    5,320.40x = 8,011.54 × 3,943.50
  4. Step 4: Simplify right side
    5,320.40x = 31,593,507.99
  5. Step 5: Solve for x
    x = 31,593,507.99/5,320.40
  6. Step 6: Final answer
    x = 5,938.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.