Home / 1,528.34-2,291.00-747.41

Finding the Fourth Proportional to 1,528.34, 2,291.00 and 747.41

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Solution

The fourth proportional to 1,528.34, 2,291.00 and 747.41 is: 1,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.34 : 2,291.00 = 747.41 : x
  2. Step 2: Convert to fraction form
    1,528.34/2,291.00 = 747.41/x
  3. Step 3: Cross multiply
    1,528.34x = 2,291.00 × 747.41
  4. Step 4: Simplify right side
    1,528.34x = 1,712,301.12
  5. Step 5: Solve for x
    x = 1,712,301.12/1,528.34
  6. Step 6: Final answer
    x = 1,120.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.