Home / 5,430.96-8,142.45-1,731.06

Finding the Fourth Proportional to 5,430.96, 8,142.45 and 1,731.06

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Solution

The fourth proportional to 5,430.96, 8,142.45 and 1,731.06 is: 2,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.96 : 8,142.45 = 1,731.06 : x
  2. Step 2: Convert to fraction form
    5,430.96/8,142.45 = 1,731.06/x
  3. Step 3: Cross multiply
    5,430.96x = 8,142.45 × 1,731.06
  4. Step 4: Simplify right side
    5,430.96x = 14,095,020.13
  5. Step 5: Solve for x
    x = 14,095,020.13/5,430.96
  6. Step 6: Final answer
    x = 2,595.31

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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.