Home / 2,911.60-4,017.66-1,652.20

Finding the Fourth Proportional to 2,911.60, 4,017.66 and 1,652.20

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Solution

The fourth proportional to 2,911.60, 4,017.66 and 1,652.20 is: 2,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.60 : 4,017.66 = 1,652.20 : x
  2. Step 2: Convert to fraction form
    2,911.60/4,017.66 = 1,652.20/x
  3. Step 3: Cross multiply
    2,911.60x = 4,017.66 × 1,652.20
  4. Step 4: Simplify right side
    2,911.60x = 6,637,977.85
  5. Step 5: Solve for x
    x = 6,637,977.85/2,911.60
  6. Step 6: Final answer
    x = 2,279.84

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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.