Home / 7,350.28-10,143.84-4,206.40

Finding the Fourth Proportional to 7,350.28, 10,143.84 and 4,206.40

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Solution

The fourth proportional to 7,350.28, 10,143.84 and 4,206.40 is: 5,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.28 : 10,143.84 = 4,206.40 : x
  2. Step 2: Convert to fraction form
    7,350.28/10,143.84 = 4,206.40/x
  3. Step 3: Cross multiply
    7,350.28x = 10,143.84 × 4,206.40
  4. Step 4: Simplify right side
    7,350.28x = 42,669,048.58
  5. Step 5: Solve for x
    x = 42,669,048.58/7,350.28
  6. Step 6: Final answer
    x = 5,805.09

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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.