Home / 1,586.44-2,186.04-1,428.76

Finding the Fourth Proportional to 1,586.44, 2,186.04 and 1,428.76

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Solution

The fourth proportional to 1,586.44, 2,186.04 and 1,428.76 is: 1,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.44 : 2,186.04 = 1,428.76 : x
  2. Step 2: Convert to fraction form
    1,586.44/2,186.04 = 1,428.76/x
  3. Step 3: Cross multiply
    1,586.44x = 2,186.04 × 1,428.76
  4. Step 4: Simplify right side
    1,586.44x = 3,123,326.51
  5. Step 5: Solve for x
    x = 3,123,326.51/1,586.44
  6. Step 6: Final answer
    x = 1,968.76

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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.