Home / 1,563.90-2,157.18-1,232.22

Finding the Fourth Proportional to 1,563.90, 2,157.18 and 1,232.22

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Solution

The fourth proportional to 1,563.90, 2,157.18 and 1,232.22 is: 1,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.90 : 2,157.18 = 1,232.22 : x
  2. Step 2: Convert to fraction form
    1,563.90/2,157.18 = 1,232.22/x
  3. Step 3: Cross multiply
    1,563.90x = 2,157.18 × 1,232.22
  4. Step 4: Simplify right side
    1,563.90x = 2,658,120.34
  5. Step 5: Solve for x
    x = 2,658,120.34/1,563.90
  6. Step 6: Final answer
    x = 1,699.67

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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.