Home / 1,631.43-2,445.12-705.03

Finding the Fourth Proportional to 1,631.43, 2,445.12 and 705.03

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Solution

The fourth proportional to 1,631.43, 2,445.12 and 705.03 is: 1,056.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.43 : 2,445.12 = 705.03 : x
  2. Step 2: Convert to fraction form
    1,631.43/2,445.12 = 705.03/x
  3. Step 3: Cross multiply
    1,631.43x = 2,445.12 × 705.03
  4. Step 4: Simplify right side
    1,631.43x = 1,723,882.95
  5. Step 5: Solve for x
    x = 1,723,882.95/1,631.43
  6. Step 6: Final answer
    x = 1,056.67

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1.5x scale

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.