Home / 1,490.08-2,235.35-553.33

Finding the Fourth Proportional to 1,490.08, 2,235.35 and 553.33

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Solution

The fourth proportional to 1,490.08, 2,235.35 and 553.33 is: 830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.08 : 2,235.35 = 553.33 : x
  2. Step 2: Convert to fraction form
    1,490.08/2,235.35 = 553.33/x
  3. Step 3: Cross multiply
    1,490.08x = 2,235.35 × 553.33
  4. Step 4: Simplify right side
    1,490.08x = 1,236,886.22
  5. Step 5: Solve for x
    x = 1,236,886.22/1,490.08
  6. Step 6: Final answer
    x = 830.08

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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.