Home / 5,426.07-8,139.11-2,502.78

Finding the Fourth Proportional to 5,426.07, 8,139.11 and 2,502.78

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Solution

The fourth proportional to 5,426.07, 8,139.11 and 2,502.78 is: 3,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.07 : 8,139.11 = 2,502.78 : x
  2. Step 2: Convert to fraction form
    5,426.07/8,139.11 = 2,502.78/x
  3. Step 3: Cross multiply
    5,426.07x = 8,139.11 × 2,502.78
  4. Step 4: Simplify right side
    5,426.07x = 20,370,411.51
  5. Step 5: Solve for x
    x = 20,370,411.51/5,426.07
  6. Step 6: Final answer
    x = 3,754.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.