Home / 7,039.81-9,714.96-3,853.04

Finding the Fourth Proportional to 7,039.81, 9,714.96 and 3,853.04

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Solution

The fourth proportional to 7,039.81, 9,714.96 and 3,853.04 is: 5,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.81 : 9,714.96 = 3,853.04 : x
  2. Step 2: Convert to fraction form
    7,039.81/9,714.96 = 3,853.04/x
  3. Step 3: Cross multiply
    7,039.81x = 9,714.96 × 3,853.04
  4. Step 4: Simplify right side
    7,039.81x = 37,432,129.48
  5. Step 5: Solve for x
    x = 37,432,129.48/7,039.81
  6. Step 6: Final answer
    x = 5,317.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.