Home / 7,031.38-9,703.23-3,887.56

Finding the Fourth Proportional to 7,031.38, 9,703.23 and 3,887.56

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Solution

The fourth proportional to 7,031.38, 9,703.23 and 3,887.56 is: 5,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.38 : 9,703.23 = 3,887.56 : x
  2. Step 2: Convert to fraction form
    7,031.38/9,703.23 = 3,887.56/x
  3. Step 3: Cross multiply
    7,031.38x = 9,703.23 × 3,887.56
  4. Step 4: Simplify right side
    7,031.38x = 37,721,888.82
  5. Step 5: Solve for x
    x = 37,721,888.82/7,031.38
  6. Step 6: Final answer
    x = 5,364.79

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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.