Home / 7,899.27-10,900.78-4,362.40

Finding the Fourth Proportional to 7,899.27, 10,900.78 and 4,362.40

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Solution

The fourth proportional to 7,899.27, 10,900.78 and 4,362.40 is: 6,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.27 : 10,900.78 = 4,362.40 : x
  2. Step 2: Convert to fraction form
    7,899.27/10,900.78 = 4,362.40/x
  3. Step 3: Cross multiply
    7,899.27x = 10,900.78 × 4,362.40
  4. Step 4: Simplify right side
    7,899.27x = 47,553,562.67
  5. Step 5: Solve for x
    x = 47,553,562.67/7,899.27
  6. Step 6: Final answer
    x = 6,019.99

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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.