Home / 7,528.35-10,388.98-4,171.15

Finding the Fourth Proportional to 7,528.35, 10,388.98 and 4,171.15

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Solution

The fourth proportional to 7,528.35, 10,388.98 and 4,171.15 is: 5,756.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.35 : 10,388.98 = 4,171.15 : x
  2. Step 2: Convert to fraction form
    7,528.35/10,388.98 = 4,171.15/x
  3. Step 3: Cross multiply
    7,528.35x = 10,388.98 × 4,171.15
  4. Step 4: Simplify right side
    7,528.35x = 43,333,973.17
  5. Step 5: Solve for x
    x = 43,333,973.17/7,528.35
  6. Step 6: Final answer
    x = 5,756.11

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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.