Home / 1,525.11-2,104.63-862.08

Finding the Fourth Proportional to 1,525.11, 2,104.63 and 862.08

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Solution

The fourth proportional to 1,525.11, 2,104.63 and 862.08 is: 1,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.11 : 2,104.63 = 862.08 : x
  2. Step 2: Convert to fraction form
    1,525.11/2,104.63 = 862.08/x
  3. Step 3: Cross multiply
    1,525.11x = 2,104.63 × 862.08
  4. Step 4: Simplify right side
    1,525.11x = 1,814,359.43
  5. Step 5: Solve for x
    x = 1,814,359.43/1,525.11
  6. Step 6: Final answer
    x = 1,189.66

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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.