Home / 4,309.39-6,464.90-1,386.91

Finding the Fourth Proportional to 4,309.39, 6,464.90 and 1,386.91

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Solution

The fourth proportional to 4,309.39, 6,464.90 and 1,386.91 is: 2,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.39 : 6,464.90 = 1,386.91 : x
  2. Step 2: Convert to fraction form
    4,309.39/6,464.90 = 1,386.91/x
  3. Step 3: Cross multiply
    4,309.39x = 6,464.90 × 1,386.91
  4. Step 4: Simplify right side
    4,309.39x = 8,966,234.46
  5. Step 5: Solve for x
    x = 8,966,234.46/4,309.39
  6. Step 6: Final answer
    x = 2,080.63

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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.