Home / 1,586.79-2,189.43-1,064.34

Finding the Fourth Proportional to 1,586.79, 2,189.43 and 1,064.34

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Solution

The fourth proportional to 1,586.79, 2,189.43 and 1,064.34 is: 1,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.79 : 2,189.43 = 1,064.34 : x
  2. Step 2: Convert to fraction form
    1,586.79/2,189.43 = 1,064.34/x
  3. Step 3: Cross multiply
    1,586.79x = 2,189.43 × 1,064.34
  4. Step 4: Simplify right side
    1,586.79x = 2,330,297.93
  5. Step 5: Solve for x
    x = 2,330,297.93/1,586.79
  6. Step 6: Final answer
    x = 1,468.56

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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.