Home / 7,921.27-10,931.31-4,384.47

Finding the Fourth Proportional to 7,921.27, 10,931.31 and 4,384.47

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Solution

The fourth proportional to 7,921.27, 10,931.31 and 4,384.47 is: 6,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.27 : 10,931.31 = 4,384.47 : x
  2. Step 2: Convert to fraction form
    7,921.27/10,931.31 = 4,384.47/x
  3. Step 3: Cross multiply
    7,921.27x = 10,931.31 × 4,384.47
  4. Step 4: Simplify right side
    7,921.27x = 47,928,000.76
  5. Step 5: Solve for x
    x = 47,928,000.76/7,921.27
  6. Step 6: Final answer
    x = 6,050.55

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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.