Home / 5,426.85-8,139.36-1,530.34

Finding the Fourth Proportional to 5,426.85, 8,139.36 and 1,530.34

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Solution

The fourth proportional to 5,426.85, 8,139.36 and 1,530.34 is: 2,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.85 : 8,139.36 = 1,530.34 : x
  2. Step 2: Convert to fraction form
    5,426.85/8,139.36 = 1,530.34/x
  3. Step 3: Cross multiply
    5,426.85x = 8,139.36 × 1,530.34
  4. Step 4: Simplify right side
    5,426.85x = 12,455,988.18
  5. Step 5: Solve for x
    x = 12,455,988.18/5,426.85
  6. Step 6: Final answer
    x = 2,295.25

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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.