Home / 1,590.28-2,385.80-603.52

Finding the Fourth Proportional to 1,590.28, 2,385.80 and 603.52

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Solution

The fourth proportional to 1,590.28, 2,385.80 and 603.52 is: 905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.28 : 2,385.80 = 603.52 : x
  2. Step 2: Convert to fraction form
    1,590.28/2,385.80 = 603.52/x
  3. Step 3: Cross multiply
    1,590.28x = 2,385.80 × 603.52
  4. Step 4: Simplify right side
    1,590.28x = 1,439,878.02
  5. Step 5: Solve for x
    x = 1,439,878.02/1,590.28
  6. Step 6: Final answer
    x = 905.42

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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.