Home / 1,155.32-1,733.34-386.36

Finding the Fourth Proportional to 1,155.32, 1,733.34 and 386.36

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Solution

The fourth proportional to 1,155.32, 1,733.34 and 386.36 is: 579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.32 : 1,733.34 = 386.36 : x
  2. Step 2: Convert to fraction form
    1,155.32/1,733.34 = 386.36/x
  3. Step 3: Cross multiply
    1,155.32x = 1,733.34 × 386.36
  4. Step 4: Simplify right side
    1,155.32x = 669,693.24
  5. Step 5: Solve for x
    x = 669,693.24/1,155.32
  6. Step 6: Final answer
    x = 579.66

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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.