Home / 5,430.08-8,145.20-1,732.30

Finding the Fourth Proportional to 5,430.08, 8,145.20 and 1,732.30

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Solution

The fourth proportional to 5,430.08, 8,145.20 and 1,732.30 is: 2,598.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.08 : 8,145.20 = 1,732.30 : x
  2. Step 2: Convert to fraction form
    5,430.08/8,145.20 = 1,732.30/x
  3. Step 3: Cross multiply
    5,430.08x = 8,145.20 × 1,732.30
  4. Step 4: Simplify right side
    5,430.08x = 14,109,929.96
  5. Step 5: Solve for x
    x = 14,109,929.96/5,430.08
  6. Step 6: Final answer
    x = 2,598.48

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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.