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Finding the Fourth Proportional to 7,068.40, 10,595.40 and 4,145.20

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Solution

The fourth proportional to 7,068.40, 10,595.40 and 4,145.20 is: 6,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.40 : 10,595.40 = 4,145.20 : x
  2. Step 2: Convert to fraction form
    7,068.40/10,595.40 = 4,145.20/x
  3. Step 3: Cross multiply
    7,068.40x = 10,595.40 × 4,145.20
  4. Step 4: Simplify right side
    7,068.40x = 43,920,052.08
  5. Step 5: Solve for x
    x = 43,920,052.08/7,068.40
  6. Step 6: Final answer
    x = 6,213.58

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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.