Home / 1,491.19-2,232.15-1,101.63

Finding the Fourth Proportional to 1,491.19, 2,232.15 and 1,101.63

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Solution

The fourth proportional to 1,491.19, 2,232.15 and 1,101.63 is: 1,649.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.19 : 2,232.15 = 1,101.63 : x
  2. Step 2: Convert to fraction form
    1,491.19/2,232.15 = 1,101.63/x
  3. Step 3: Cross multiply
    1,491.19x = 2,232.15 × 1,101.63
  4. Step 4: Simplify right side
    1,491.19x = 2,459,003.40
  5. Step 5: Solve for x
    x = 2,459,003.40/1,491.19
  6. Step 6: Final answer
    x = 1,649.02

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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.