Home / 1,490.42-2,237.26-1,099.20

Finding the Fourth Proportional to 1,490.42, 2,237.26 and 1,099.20

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Solution

The fourth proportional to 1,490.42, 2,237.26 and 1,099.20 is: 1,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.42 : 2,237.26 = 1,099.20 : x
  2. Step 2: Convert to fraction form
    1,490.42/2,237.26 = 1,099.20/x
  3. Step 3: Cross multiply
    1,490.42x = 2,237.26 × 1,099.20
  4. Step 4: Simplify right side
    1,490.42x = 2,459,196.19
  5. Step 5: Solve for x
    x = 2,459,196.19/1,490.42
  6. Step 6: Final answer
    x = 1,650.00

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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.