Home / 7,528.40-10,389.17-4,171.41

Finding the Fourth Proportional to 7,528.40, 10,389.17 and 4,171.41

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Solution

The fourth proportional to 7,528.40, 10,389.17 and 4,171.41 is: 5,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.40 : 10,389.17 = 4,171.41 : x
  2. Step 2: Convert to fraction form
    7,528.40/10,389.17 = 4,171.41/x
  3. Step 3: Cross multiply
    7,528.40x = 10,389.17 × 4,171.41
  4. Step 4: Simplify right side
    7,528.40x = 43,337,466.77
  5. Step 5: Solve for x
    x = 43,337,466.77/7,528.40
  6. Step 6: Final answer
    x = 5,756.53

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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.