Home / 5,129.10-7,693.65-1,842.30

Finding the Fourth Proportional to 5,129.10, 7,693.65 and 1,842.30

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Solution

The fourth proportional to 5,129.10, 7,693.65 and 1,842.30 is: 2,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.10 : 7,693.65 = 1,842.30 : x
  2. Step 2: Convert to fraction form
    5,129.10/7,693.65 = 1,842.30/x
  3. Step 3: Cross multiply
    5,129.10x = 7,693.65 × 1,842.30
  4. Step 4: Simplify right side
    5,129.10x = 14,174,011.40
  5. Step 5: Solve for x
    x = 14,174,011.40/5,129.10
  6. Step 6: Final answer
    x = 2,763.45

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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.