Home / 1,147.34-1,719.60-530.21

Finding the Fourth Proportional to 1,147.34, 1,719.60 and 530.21

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Solution

The fourth proportional to 1,147.34, 1,719.60 and 530.21 is: 794.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.34 : 1,719.60 = 530.21 : x
  2. Step 2: Convert to fraction form
    1,147.34/1,719.60 = 530.21/x
  3. Step 3: Cross multiply
    1,147.34x = 1,719.60 × 530.21
  4. Step 4: Simplify right side
    1,147.34x = 911,749.12
  5. Step 5: Solve for x
    x = 911,749.12/1,147.34
  6. Step 6: Final answer
    x = 794.66

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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.