Home / 5,430.83-8,159.85-3,457.31

Finding the Fourth Proportional to 5,430.83, 8,159.85 and 3,457.31

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Solution

The fourth proportional to 5,430.83, 8,159.85 and 3,457.31 is: 5,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.83 : 8,159.85 = 3,457.31 : x
  2. Step 2: Convert to fraction form
    5,430.83/8,159.85 = 3,457.31/x
  3. Step 3: Cross multiply
    5,430.83x = 8,159.85 × 3,457.31
  4. Step 4: Simplify right side
    5,430.83x = 28,211,090.20
  5. Step 5: Solve for x
    x = 28,211,090.20/5,430.83
  6. Step 6: Final answer
    x = 5,194.62

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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.