Home / 1,396.12-1,925.70-1,303.24

Finding the Fourth Proportional to 1,396.12, 1,925.70 and 1,303.24

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Solution

The fourth proportional to 1,396.12, 1,925.70 and 1,303.24 is: 1,797.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.12 : 1,925.70 = 1,303.24 : x
  2. Step 2: Convert to fraction form
    1,396.12/1,925.70 = 1,303.24/x
  3. Step 3: Cross multiply
    1,396.12x = 1,925.70 × 1,303.24
  4. Step 4: Simplify right side
    1,396.12x = 2,509,649.27
  5. Step 5: Solve for x
    x = 2,509,649.27/1,396.12
  6. Step 6: Final answer
    x = 1,797.59

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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.