Home / 2,911.52-4,017.80-1,585.22

Finding the Fourth Proportional to 2,911.52, 4,017.80 and 1,585.22

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Solution

The fourth proportional to 2,911.52, 4,017.80 and 1,585.22 is: 2,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.52 : 4,017.80 = 1,585.22 : x
  2. Step 2: Convert to fraction form
    2,911.52/4,017.80 = 1,585.22/x
  3. Step 3: Cross multiply
    2,911.52x = 4,017.80 × 1,585.22
  4. Step 4: Simplify right side
    2,911.52x = 6,369,096.92
  5. Step 5: Solve for x
    x = 6,369,096.92/2,911.52
  6. Step 6: Final answer
    x = 2,187.55

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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.