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Finding the Fourth Proportional to 7,339.16, 11,000.10 and 2,655.20

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Solution

The fourth proportional to 7,339.16, 11,000.10 and 2,655.20 is: 3,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.16 : 11,000.10 = 2,655.20 : x
  2. Step 2: Convert to fraction form
    7,339.16/11,000.10 = 2,655.20/x
  3. Step 3: Cross multiply
    7,339.16x = 11,000.10 × 2,655.20
  4. Step 4: Simplify right side
    7,339.16x = 29,207,465.52
  5. Step 5: Solve for x
    x = 29,207,465.52/7,339.16
  6. Step 6: Final answer
    x = 3,979.67

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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.