Home / 7,528.41-10,388.79-4,171.19

Finding the Fourth Proportional to 7,528.41, 10,388.79 and 4,171.19

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Solution

The fourth proportional to 7,528.41, 10,388.79 and 4,171.19 is: 5,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.41 : 10,388.79 = 4,171.19 : x
  2. Step 2: Convert to fraction form
    7,528.41/10,388.79 = 4,171.19/x
  3. Step 3: Cross multiply
    7,528.41x = 10,388.79 × 4,171.19
  4. Step 4: Simplify right side
    7,528.41x = 43,333,565.02
  5. Step 5: Solve for x
    x = 43,333,565.02/7,528.41
  6. Step 6: Final answer
    x = 5,756.00

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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.