Home / 7,031.20-10,546.80-4,266.40

Finding the Fourth Proportional to 7,031.20, 10,546.80 and 4,266.40

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Solution

The fourth proportional to 7,031.20, 10,546.80 and 4,266.40 is: 6,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.20 : 10,546.80 = 4,266.40 : x
  2. Step 2: Convert to fraction form
    7,031.20/10,546.80 = 4,266.40/x
  3. Step 3: Cross multiply
    7,031.20x = 10,546.80 × 4,266.40
  4. Step 4: Simplify right side
    7,031.20x = 44,996,867.52
  5. Step 5: Solve for x
    x = 44,996,867.52/7,031.20
  6. Step 6: Final answer
    x = 6,399.60

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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.