Home / 2,471.80-3,412.04-1,587.64

Finding the Fourth Proportional to 2,471.80, 3,412.04 and 1,587.64

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Solution

The fourth proportional to 2,471.80, 3,412.04 and 1,587.64 is: 2,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.80 : 3,412.04 = 1,587.64 : x
  2. Step 2: Convert to fraction form
    2,471.80/3,412.04 = 1,587.64/x
  3. Step 3: Cross multiply
    2,471.80x = 3,412.04 × 1,587.64
  4. Step 4: Simplify right side
    2,471.80x = 5,417,091.19
  5. Step 5: Solve for x
    x = 5,417,091.19/2,471.80
  6. Step 6: Final answer
    x = 2,191.56

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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.