Home / 7,031.07-9,702.99-3,887.06

Finding the Fourth Proportional to 7,031.07, 9,702.99 and 3,887.06

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Solution

The fourth proportional to 7,031.07, 9,702.99 and 3,887.06 is: 5,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.07 : 9,702.99 = 3,887.06 : x
  2. Step 2: Convert to fraction form
    7,031.07/9,702.99 = 3,887.06/x
  3. Step 3: Cross multiply
    7,031.07x = 9,702.99 × 3,887.06
  4. Step 4: Simplify right side
    7,031.07x = 37,716,055.79
  5. Step 5: Solve for x
    x = 37,716,055.79/7,031.07
  6. Step 6: Final answer
    x = 5,364.20

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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.