Home / 7,239.04-9,989.43-4,051.79

Finding the Fourth Proportional to 7,239.04, 9,989.43 and 4,051.79

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Solution

The fourth proportional to 7,239.04, 9,989.43 and 4,051.79 is: 5,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.04 : 9,989.43 = 4,051.79 : x
  2. Step 2: Convert to fraction form
    7,239.04/9,989.43 = 4,051.79/x
  3. Step 3: Cross multiply
    7,239.04x = 9,989.43 × 4,051.79
  4. Step 4: Simplify right side
    7,239.04x = 40,475,044.90
  5. Step 5: Solve for x
    x = 40,475,044.90/7,239.04
  6. Step 6: Final answer
    x = 5,591.22

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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.