Home / 1,558.10-2,150.10-859.46

Finding the Fourth Proportional to 1,558.10, 2,150.10 and 859.46

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Solution

The fourth proportional to 1,558.10, 2,150.10 and 859.46 is: 1,186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.10 : 2,150.10 = 859.46 : x
  2. Step 2: Convert to fraction form
    1,558.10/2,150.10 = 859.46/x
  3. Step 3: Cross multiply
    1,558.10x = 2,150.10 × 859.46
  4. Step 4: Simplify right side
    1,558.10x = 1,847,924.95
  5. Step 5: Solve for x
    x = 1,847,924.95/1,558.10
  6. Step 6: Final answer
    x = 1,186.01

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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.