Home / 3,780.08-5,671.10-1,590.35

Finding the Fourth Proportional to 3,780.08, 5,671.10 and 1,590.35

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Solution

The fourth proportional to 3,780.08, 5,671.10 and 1,590.35 is: 2,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.08 : 5,671.10 = 1,590.35 : x
  2. Step 2: Convert to fraction form
    3,780.08/5,671.10 = 1,590.35/x
  3. Step 3: Cross multiply
    3,780.08x = 5,671.10 × 1,590.35
  4. Step 4: Simplify right side
    3,780.08x = 9,019,009.51
  5. Step 5: Solve for x
    x = 9,019,009.51/3,780.08
  6. Step 6: Final answer
    x = 2,385.93

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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.