Home / 1,405.15-1,933.67-1,364.24

Finding the Fourth Proportional to 1,405.15, 1,933.67 and 1,364.24

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Solution

The fourth proportional to 1,405.15, 1,933.67 and 1,364.24 is: 1,877.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.15 : 1,933.67 = 1,364.24 : x
  2. Step 2: Convert to fraction form
    1,405.15/1,933.67 = 1,364.24/x
  3. Step 3: Cross multiply
    1,405.15x = 1,933.67 × 1,364.24
  4. Step 4: Simplify right side
    1,405.15x = 2,637,998.21
  5. Step 5: Solve for x
    x = 2,637,998.21/1,405.15
  6. Step 6: Final answer
    x = 1,877.38

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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.