Home / 5,430.46-8,139.38-2,502.60

Finding the Fourth Proportional to 5,430.46, 8,139.38 and 2,502.60

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Solution

The fourth proportional to 5,430.46, 8,139.38 and 2,502.60 is: 3,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.46 : 8,139.38 = 2,502.60 : x
  2. Step 2: Convert to fraction form
    5,430.46/8,139.38 = 2,502.60/x
  3. Step 3: Cross multiply
    5,430.46x = 8,139.38 × 2,502.60
  4. Step 4: Simplify right side
    5,430.46x = 20,369,612.39
  5. Step 5: Solve for x
    x = 20,369,612.39/5,430.46
  6. Step 6: Final answer
    x = 3,750.99

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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.