Home / 1,400.19-2,100.18-852.24

Finding the Fourth Proportional to 1,400.19, 2,100.18 and 852.24

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Solution

The fourth proportional to 1,400.19, 2,100.18 and 852.24 is: 1,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.19 : 2,100.18 = 852.24 : x
  2. Step 2: Convert to fraction form
    1,400.19/2,100.18 = 852.24/x
  3. Step 3: Cross multiply
    1,400.19x = 2,100.18 × 852.24
  4. Step 4: Simplify right side
    1,400.19x = 1,789,857.40
  5. Step 5: Solve for x
    x = 1,789,857.40/1,400.19
  6. Step 6: Final answer
    x = 1,278.30

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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.