Home / 7,390.98-10,199.79-4,247.10

Finding the Fourth Proportional to 7,390.98, 10,199.79 and 4,247.10

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Solution

The fourth proportional to 7,390.98, 10,199.79 and 4,247.10 is: 5,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.98 : 10,199.79 = 4,247.10 : x
  2. Step 2: Convert to fraction form
    7,390.98/10,199.79 = 4,247.10/x
  3. Step 3: Cross multiply
    7,390.98x = 10,199.79 × 4,247.10
  4. Step 4: Simplify right side
    7,390.98x = 43,319,528.11
  5. Step 5: Solve for x
    x = 43,319,528.11/7,390.98
  6. Step 6: Final answer
    x = 5,861.13

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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.