Home / 7,921.18-10,930.63-4,384.45

Finding the Fourth Proportional to 7,921.18, 10,930.63 and 4,384.45

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Solution

The fourth proportional to 7,921.18, 10,930.63 and 4,384.45 is: 6,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.18 : 10,930.63 = 4,384.45 : x
  2. Step 2: Convert to fraction form
    7,921.18/10,930.63 = 4,384.45/x
  3. Step 3: Cross multiply
    7,921.18x = 10,930.63 × 4,384.45
  4. Step 4: Simplify right side
    7,921.18x = 47,924,800.70
  5. Step 5: Solve for x
    x = 47,924,800.70/7,921.18
  6. Step 6: Final answer
    x = 6,050.21

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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.