Home / 7,031.32-9,703.20-3,887.52

Finding the Fourth Proportional to 7,031.32, 9,703.20 and 3,887.52

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Solution

The fourth proportional to 7,031.32, 9,703.20 and 3,887.52 is: 5,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.32 : 9,703.20 = 3,887.52 : x
  2. Step 2: Convert to fraction form
    7,031.32/9,703.20 = 3,887.52/x
  3. Step 3: Cross multiply
    7,031.32x = 9,703.20 × 3,887.52
  4. Step 4: Simplify right side
    7,031.32x = 37,721,384.06
  5. Step 5: Solve for x
    x = 37,721,384.06/7,031.32
  6. Step 6: Final answer
    x = 5,364.77

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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.