Home / 1,571.94-2,164.30-1,197.72

Finding the Fourth Proportional to 1,571.94, 2,164.30 and 1,197.72

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Solution

The fourth proportional to 1,571.94, 2,164.30 and 1,197.72 is: 1,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.94 : 2,164.30 = 1,197.72 : x
  2. Step 2: Convert to fraction form
    1,571.94/2,164.30 = 1,197.72/x
  3. Step 3: Cross multiply
    1,571.94x = 2,164.30 × 1,197.72
  4. Step 4: Simplify right side
    1,571.94x = 2,592,225.40
  5. Step 5: Solve for x
    x = 2,592,225.40/1,571.94
  6. Step 6: Final answer
    x = 1,649.06

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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.