Home / 7,285.56-10,930.91-3,125.40

Finding the Fourth Proportional to 7,285.56, 10,930.91 and 3,125.40

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Solution

The fourth proportional to 7,285.56, 10,930.91 and 3,125.40 is: 4,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.56 : 10,930.91 = 3,125.40 : x
  2. Step 2: Convert to fraction form
    7,285.56/10,930.91 = 3,125.40/x
  3. Step 3: Cross multiply
    7,285.56x = 10,930.91 × 3,125.40
  4. Step 4: Simplify right side
    7,285.56x = 34,163,466.11
  5. Step 5: Solve for x
    x = 34,163,466.11/7,285.56
  6. Step 6: Final answer
    x = 4,689.20

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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.