Home / 1,563.40-2,157.63-1,169.74

Finding the Fourth Proportional to 1,563.40, 2,157.63 and 1,169.74

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Solution

The fourth proportional to 1,563.40, 2,157.63 and 1,169.74 is: 1,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.40 : 2,157.63 = 1,169.74 : x
  2. Step 2: Convert to fraction form
    1,563.40/2,157.63 = 1,169.74/x
  3. Step 3: Cross multiply
    1,563.40x = 2,157.63 × 1,169.74
  4. Step 4: Simplify right side
    1,563.40x = 2,523,866.12
  5. Step 5: Solve for x
    x = 2,523,866.12/1,563.40
  6. Step 6: Final answer
    x = 1,614.34

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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.