Home / 1,533.58-2,115.57-943.18

Finding the Fourth Proportional to 1,533.58, 2,115.57 and 943.18

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Solution

The fourth proportional to 1,533.58, 2,115.57 and 943.18 is: 1,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.58 : 2,115.57 = 943.18 : x
  2. Step 2: Convert to fraction form
    1,533.58/2,115.57 = 943.18/x
  3. Step 3: Cross multiply
    1,533.58x = 2,115.57 × 943.18
  4. Step 4: Simplify right side
    1,533.58x = 1,995,363.31
  5. Step 5: Solve for x
    x = 1,995,363.31/1,533.58
  6. Step 6: Final answer
    x = 1,301.11

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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.