Home / 5,426.09-8,139.13-1,529.99

Finding the Fourth Proportional to 5,426.09, 8,139.13 and 1,529.99

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Solution

The fourth proportional to 5,426.09, 8,139.13 and 1,529.99 is: 2,294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.09 : 8,139.13 = 1,529.99 : x
  2. Step 2: Convert to fraction form
    5,426.09/8,139.13 = 1,529.99/x
  3. Step 3: Cross multiply
    5,426.09x = 8,139.13 × 1,529.99
  4. Step 4: Simplify right side
    5,426.09x = 12,452,787.51
  5. Step 5: Solve for x
    x = 12,452,787.51/5,426.09
  6. Step 6: Final answer
    x = 2,294.98

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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.