Home / 2,848.60-3,931.70-1,590.09

Finding the Fourth Proportional to 2,848.60, 3,931.70 and 1,590.09

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Solution

The fourth proportional to 2,848.60, 3,931.70 and 1,590.09 is: 2,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.60 : 3,931.70 = 1,590.09 : x
  2. Step 2: Convert to fraction form
    2,848.60/3,931.70 = 1,590.09/x
  3. Step 3: Cross multiply
    2,848.60x = 3,931.70 × 1,590.09
  4. Step 4: Simplify right side
    2,848.60x = 6,251,756.85
  5. Step 5: Solve for x
    x = 6,251,756.85/2,848.60
  6. Step 6: Final answer
    x = 2,194.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.