Home / 7,378.99-10,182.18-4,192.06

Finding the Fourth Proportional to 7,378.99, 10,182.18 and 4,192.06

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Solution

The fourth proportional to 7,378.99, 10,182.18 and 4,192.06 is: 5,784.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.99 : 10,182.18 = 4,192.06 : x
  2. Step 2: Convert to fraction form
    7,378.99/10,182.18 = 4,192.06/x
  3. Step 3: Cross multiply
    7,378.99x = 10,182.18 × 4,192.06
  4. Step 4: Simplify right side
    7,378.99x = 42,684,309.49
  5. Step 5: Solve for x
    x = 42,684,309.49/7,378.99
  6. Step 6: Final answer
    x = 5,784.57

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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.