Home / 2,586.14-3,568.76-1,407.21

Finding the Fourth Proportional to 2,586.14, 3,568.76 and 1,407.21

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Solution

The fourth proportional to 2,586.14, 3,568.76 and 1,407.21 is: 1,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.14 : 3,568.76 = 1,407.21 : x
  2. Step 2: Convert to fraction form
    2,586.14/3,568.76 = 1,407.21/x
  3. Step 3: Cross multiply
    2,586.14x = 3,568.76 × 1,407.21
  4. Step 4: Simplify right side
    2,586.14x = 5,021,994.76
  5. Step 5: Solve for x
    x = 5,021,994.76/2,586.14
  6. Step 6: Final answer
    x = 1,941.89

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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.