Home / 7,474.20-10,314.40-4,117.02

Finding the Fourth Proportional to 7,474.20, 10,314.40 and 4,117.02

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Solution

The fourth proportional to 7,474.20, 10,314.40 and 4,117.02 is: 5,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.20 : 10,314.40 = 4,117.02 : x
  2. Step 2: Convert to fraction form
    7,474.20/10,314.40 = 4,117.02/x
  3. Step 3: Cross multiply
    7,474.20x = 10,314.40 × 4,117.02
  4. Step 4: Simplify right side
    7,474.20x = 42,464,591.09
  5. Step 5: Solve for x
    x = 42,464,591.09/7,474.20
  6. Step 6: Final answer
    x = 5,681.49

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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.