Home / 1,590.30-2,385.68-616.50

Finding the Fourth Proportional to 1,590.30, 2,385.68 and 616.50

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Solution

The fourth proportional to 1,590.30, 2,385.68 and 616.50 is: 924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.30 : 2,385.68 = 616.50 : x
  2. Step 2: Convert to fraction form
    1,590.30/2,385.68 = 616.50/x
  3. Step 3: Cross multiply
    1,590.30x = 2,385.68 × 616.50
  4. Step 4: Simplify right side
    1,590.30x = 1,470,768.64
  5. Step 5: Solve for x
    x = 1,470,768.64/1,590.30
  6. Step 6: Final answer
    x = 924.84

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1.5x scale

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.