Home / 1,533.09-2,113.80-1,296.63

Finding the Fourth Proportional to 1,533.09, 2,113.80 and 1,296.63

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Solution

The fourth proportional to 1,533.09, 2,113.80 and 1,296.63 is: 1,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.09 : 2,113.80 = 1,296.63 : x
  2. Step 2: Convert to fraction form
    1,533.09/2,113.80 = 1,296.63/x
  3. Step 3: Cross multiply
    1,533.09x = 2,113.80 × 1,296.63
  4. Step 4: Simplify right side
    1,533.09x = 2,740,816.49
  5. Step 5: Solve for x
    x = 2,740,816.49/1,533.09
  6. Step 6: Final answer
    x = 1,787.77

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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.