Home / 1,529.42-2,110.34-900.47

Finding the Fourth Proportional to 1,529.42, 2,110.34 and 900.47

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Solution

The fourth proportional to 1,529.42, 2,110.34 and 900.47 is: 1,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.42 : 2,110.34 = 900.47 : x
  2. Step 2: Convert to fraction form
    1,529.42/2,110.34 = 900.47/x
  3. Step 3: Cross multiply
    1,529.42x = 2,110.34 × 900.47
  4. Step 4: Simplify right side
    1,529.42x = 1,900,305.39
  5. Step 5: Solve for x
    x = 1,900,305.39/1,529.42
  6. Step 6: Final answer
    x = 1,242.50

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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.