Home / 7,041.28-9,716.58-3,897.28

Finding the Fourth Proportional to 7,041.28, 9,716.58 and 3,897.28

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Solution

The fourth proportional to 7,041.28, 9,716.58 and 3,897.28 is: 5,378.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.28 : 9,716.58 = 3,897.28 : x
  2. Step 2: Convert to fraction form
    7,041.28/9,716.58 = 3,897.28/x
  3. Step 3: Cross multiply
    7,041.28x = 9,716.58 × 3,897.28
  4. Step 4: Simplify right side
    7,041.28x = 37,868,232.90
  5. Step 5: Solve for x
    x = 37,868,232.90/7,041.28
  6. Step 6: Final answer
    x = 5,378.03

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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.