Home / 7,921.41-10,931.72-4,384.77

Finding the Fourth Proportional to 7,921.41, 10,931.72 and 4,384.77

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Solution

The fourth proportional to 7,921.41, 10,931.72 and 4,384.77 is: 6,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.41 : 10,931.72 = 4,384.77 : x
  2. Step 2: Convert to fraction form
    7,921.41/10,931.72 = 4,384.77/x
  3. Step 3: Cross multiply
    7,921.41x = 10,931.72 × 4,384.77
  4. Step 4: Simplify right side
    7,921.41x = 47,933,055.98
  5. Step 5: Solve for x
    x = 47,933,055.98/7,921.41
  6. Step 6: Final answer
    x = 6,051.08

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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.