Home / 1,530.61-2,113.11-1,171.02

Finding the Fourth Proportional to 1,530.61, 2,113.11 and 1,171.02

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Solution

The fourth proportional to 1,530.61, 2,113.11 and 1,171.02 is: 1,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.61 : 2,113.11 = 1,171.02 : x
  2. Step 2: Convert to fraction form
    1,530.61/2,113.11 = 1,171.02/x
  3. Step 3: Cross multiply
    1,530.61x = 2,113.11 × 1,171.02
  4. Step 4: Simplify right side
    1,530.61x = 2,474,492.91
  5. Step 5: Solve for x
    x = 2,474,492.91/1,530.61
  6. Step 6: Final answer
    x = 1,616.67

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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.