Home / 1,219.32-1,829.52-570.51

Finding the Fourth Proportional to 1,219.32, 1,829.52 and 570.51

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Solution

The fourth proportional to 1,219.32, 1,829.52 and 570.51 is: 856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.32 : 1,829.52 = 570.51 : x
  2. Step 2: Convert to fraction form
    1,219.32/1,829.52 = 570.51/x
  3. Step 3: Cross multiply
    1,219.32x = 1,829.52 × 570.51
  4. Step 4: Simplify right side
    1,219.32x = 1,043,759.46
  5. Step 5: Solve for x
    x = 1,043,759.46/1,219.32
  6. Step 6: Final answer
    x = 856.02

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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.