Home / 1,642.10-2,266.12-896.05

Finding the Fourth Proportional to 1,642.10, 2,266.12 and 896.05

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Solution

The fourth proportional to 1,642.10, 2,266.12 and 896.05 is: 1,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.10 : 2,266.12 = 896.05 : x
  2. Step 2: Convert to fraction form
    1,642.10/2,266.12 = 896.05/x
  3. Step 3: Cross multiply
    1,642.10x = 2,266.12 × 896.05
  4. Step 4: Simplify right side
    1,642.10x = 2,030,552.35
  5. Step 5: Solve for x
    x = 2,030,552.35/1,642.10
  6. Step 6: Final answer
    x = 1,236.56

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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.