Home / 7,840.24-10,819.68-4,303.72

Finding the Fourth Proportional to 7,840.24, 10,819.68 and 4,303.72

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Solution

The fourth proportional to 7,840.24, 10,819.68 and 4,303.72 is: 5,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.24 : 10,819.68 = 4,303.72 : x
  2. Step 2: Convert to fraction form
    7,840.24/10,819.68 = 4,303.72/x
  3. Step 3: Cross multiply
    7,840.24x = 10,819.68 × 4,303.72
  4. Step 4: Simplify right side
    7,840.24x = 46,564,873.21
  5. Step 5: Solve for x
    x = 46,564,873.21/7,840.24
  6. Step 6: Final answer
    x = 5,939.22

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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.