Home / 5,363.42-7,402.20-3,125.40

Finding the Fourth Proportional to 5,363.42, 7,402.20 and 3,125.40

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Solution

The fourth proportional to 5,363.42, 7,402.20 and 3,125.40 is: 4,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.42 : 7,402.20 = 3,125.40 : x
  2. Step 2: Convert to fraction form
    5,363.42/7,402.20 = 3,125.40/x
  3. Step 3: Cross multiply
    5,363.42x = 7,402.20 × 3,125.40
  4. Step 4: Simplify right side
    5,363.42x = 23,134,835.88
  5. Step 5: Solve for x
    x = 23,134,835.88/5,363.42
  6. Step 6: Final answer
    x = 4,313.45

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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.