Home / 1,590.36-2,385.23-1,284

Finding the Fourth Proportional to 1,590.36, 2,385.23 and 1,284

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Solution

The fourth proportional to 1,590.36, 2,385.23 and 1,284 is: 1,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.36 : 2,385.23 = 1,284 : x
  2. Step 2: Convert to fraction form
    1,590.36/2,385.23 = 1,284/x
  3. Step 3: Cross multiply
    1,590.36x = 2,385.23 × 1,284
  4. Step 4: Simplify right side
    1,590.36x = 3,062,628.90
  5. Step 5: Solve for x
    x = 3,062,628.90/1,590.36
  6. Step 6: Final answer
    x = 1,925.75

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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.