Home / 4,308.21-6,461.13-1,187.48

Finding the Fourth Proportional to 4,308.21, 6,461.13 and 1,187.48

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Solution

The fourth proportional to 4,308.21, 6,461.13 and 1,187.48 is: 1,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.21 : 6,461.13 = 1,187.48 : x
  2. Step 2: Convert to fraction form
    4,308.21/6,461.13 = 1,187.48/x
  3. Step 3: Cross multiply
    4,308.21x = 6,461.13 × 1,187.48
  4. Step 4: Simplify right side
    4,308.21x = 7,672,483.26
  5. Step 5: Solve for x
    x = 7,672,483.26/4,308.21
  6. Step 6: Final answer
    x = 1,780.90

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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.