Home / 7,420.31-10,240.52-4,276.70

Finding the Fourth Proportional to 7,420.31, 10,240.52 and 4,276.70

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Solution

The fourth proportional to 7,420.31, 10,240.52 and 4,276.70 is: 5,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.31 : 10,240.52 = 4,276.70 : x
  2. Step 2: Convert to fraction form
    7,420.31/10,240.52 = 4,276.70/x
  3. Step 3: Cross multiply
    7,420.31x = 10,240.52 × 4,276.70
  4. Step 4: Simplify right side
    7,420.31x = 43,795,631.88
  5. Step 5: Solve for x
    x = 43,795,631.88/7,420.31
  6. Step 6: Final answer
    x = 5,902.13

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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.