Home / 7,420.56-10,240.86-4,276.95

Finding the Fourth Proportional to 7,420.56, 10,240.86 and 4,276.95

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Solution

The fourth proportional to 7,420.56, 10,240.86 and 4,276.95 is: 5,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.56 : 10,240.86 = 4,276.95 : x
  2. Step 2: Convert to fraction form
    7,420.56/10,240.86 = 4,276.95/x
  3. Step 3: Cross multiply
    7,420.56x = 10,240.86 × 4,276.95
  4. Step 4: Simplify right side
    7,420.56x = 43,799,646.18
  5. Step 5: Solve for x
    x = 43,799,646.18/7,420.56
  6. Step 6: Final answer
    x = 5,902.47

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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.