Home / 7,215.18-10,818.39-2,827.38

Finding the Fourth Proportional to 7,215.18, 10,818.39 and 2,827.38

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Solution

The fourth proportional to 7,215.18, 10,818.39 and 2,827.38 is: 4,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.18 : 10,818.39 = 2,827.38 : x
  2. Step 2: Convert to fraction form
    7,215.18/10,818.39 = 2,827.38/x
  3. Step 3: Cross multiply
    7,215.18x = 10,818.39 × 2,827.38
  4. Step 4: Simplify right side
    7,215.18x = 30,587,699.52
  5. Step 5: Solve for x
    x = 30,587,699.52/7,215.18
  6. Step 6: Final answer
    x = 4,239.35

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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.