Home / 5,439.08-8,151.32-2,970.20

Finding the Fourth Proportional to 5,439.08, 8,151.32 and 2,970.20

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Solution

The fourth proportional to 5,439.08, 8,151.32 and 2,970.20 is: 4,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.08 : 8,151.32 = 2,970.20 : x
  2. Step 2: Convert to fraction form
    5,439.08/8,151.32 = 2,970.20/x
  3. Step 3: Cross multiply
    5,439.08x = 8,151.32 × 2,970.20
  4. Step 4: Simplify right side
    5,439.08x = 24,211,050.66
  5. Step 5: Solve for x
    x = 24,211,050.66/5,439.08
  6. Step 6: Final answer
    x = 4,451.31

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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.