Home / 1,319.05-1,816.26-1,152.29

Finding the Fourth Proportional to 1,319.05, 1,816.26 and 1,152.29

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Solution

The fourth proportional to 1,319.05, 1,816.26 and 1,152.29 is: 1,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319.05 : 1,816.26 = 1,152.29 : x
  2. Step 2: Convert to fraction form
    1,319.05/1,816.26 = 1,152.29/x
  3. Step 3: Cross multiply
    1,319.05x = 1,816.26 × 1,152.29
  4. Step 4: Simplify right side
    1,319.05x = 2,092,858.24
  5. Step 5: Solve for x
    x = 2,092,858.24/1,319.05
  6. Step 6: Final answer
    x = 1,586.64

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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.