Home / 5,164.20-7,746.30-4,289.40

Finding the Fourth Proportional to 5,164.20, 7,746.30 and 4,289.40

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Solution

The fourth proportional to 5,164.20, 7,746.30 and 4,289.40 is: 6,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.20 : 7,746.30 = 4,289.40 : x
  2. Step 2: Convert to fraction form
    5,164.20/7,746.30 = 4,289.40/x
  3. Step 3: Cross multiply
    5,164.20x = 7,746.30 × 4,289.40
  4. Step 4: Simplify right side
    5,164.20x = 33,226,979.22
  5. Step 5: Solve for x
    x = 33,226,979.22/5,164.20
  6. Step 6: Final answer
    x = 6,434.10

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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.