Home / 4,308.48-6,461.34-1,386.09

Finding the Fourth Proportional to 4,308.48, 6,461.34 and 1,386.09

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Solution

The fourth proportional to 4,308.48, 6,461.34 and 1,386.09 is: 2,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.48 : 6,461.34 = 1,386.09 : x
  2. Step 2: Convert to fraction form
    4,308.48/6,461.34 = 1,386.09/x
  3. Step 3: Cross multiply
    4,308.48x = 6,461.34 × 1,386.09
  4. Step 4: Simplify right side
    4,308.48x = 8,955,998.76
  5. Step 5: Solve for x
    x = 8,955,998.76/4,308.48
  6. Step 6: Final answer
    x = 2,078.69

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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.