Home / 3,117.30-4,676.03-926.10

Finding the Fourth Proportional to 3,117.30, 4,676.03 and 926.10

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Solution

The fourth proportional to 3,117.30, 4,676.03 and 926.10 is: 1,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.30 : 4,676.03 = 926.10 : x
  2. Step 2: Convert to fraction form
    3,117.30/4,676.03 = 926.10/x
  3. Step 3: Cross multiply
    3,117.30x = 4,676.03 × 926.10
  4. Step 4: Simplify right side
    3,117.30x = 4,330,466.75
  5. Step 5: Solve for x
    x = 4,330,466.75/3,117.30
  6. Step 6: Final answer
    x = 1,389.17

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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.