Home / 7,921.65-10,931.94-4,384.92

Finding the Fourth Proportional to 7,921.65, 10,931.94 and 4,384.92

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Solution

The fourth proportional to 7,921.65, 10,931.94 and 4,384.92 is: 6,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.65 : 10,931.94 = 4,384.92 : x
  2. Step 2: Convert to fraction form
    7,921.65/10,931.94 = 4,384.92/x
  3. Step 3: Cross multiply
    7,921.65x = 10,931.94 × 4,384.92
  4. Step 4: Simplify right side
    7,921.65x = 47,935,682.34
  5. Step 5: Solve for x
    x = 47,935,682.34/7,921.65
  6. Step 6: Final answer
    x = 6,051.22

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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.