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Finding the Fourth Proportional to 7,482.81, 10,325.80 and 4,125.65

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Solution

The fourth proportional to 7,482.81, 10,325.80 and 4,125.65 is: 5,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.81 : 10,325.80 = 4,125.65 : x
  2. Step 2: Convert to fraction form
    7,482.81/10,325.80 = 4,125.65/x
  3. Step 3: Cross multiply
    7,482.81x = 10,325.80 × 4,125.65
  4. Step 4: Simplify right side
    7,482.81x = 42,600,636.77
  5. Step 5: Solve for x
    x = 42,600,636.77/7,482.81
  6. Step 6: Final answer
    x = 5,693.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.