Home / 2,917.10-4,025.60-1,590.81

Finding the Fourth Proportional to 2,917.10, 4,025.60 and 1,590.81

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Solution

The fourth proportional to 2,917.10, 4,025.60 and 1,590.81 is: 2,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.10 : 4,025.60 = 1,590.81 : x
  2. Step 2: Convert to fraction form
    2,917.10/4,025.60 = 1,590.81/x
  3. Step 3: Cross multiply
    2,917.10x = 4,025.60 × 1,590.81
  4. Step 4: Simplify right side
    2,917.10x = 6,403,964.74
  5. Step 5: Solve for x
    x = 6,403,964.74/2,917.10
  6. Step 6: Final answer
    x = 2,195.32

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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.