Home / 5,420.29-8,124.16-2,492.45

Finding the Fourth Proportional to 5,420.29, 8,124.16 and 2,492.45

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Solution

The fourth proportional to 5,420.29, 8,124.16 and 2,492.45 is: 3,735.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.29 : 8,124.16 = 2,492.45 : x
  2. Step 2: Convert to fraction form
    5,420.29/8,124.16 = 2,492.45/x
  3. Step 3: Cross multiply
    5,420.29x = 8,124.16 × 2,492.45
  4. Step 4: Simplify right side
    5,420.29x = 20,249,062.59
  5. Step 5: Solve for x
    x = 20,249,062.59/5,420.29
  6. Step 6: Final answer
    x = 3,735.79

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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.