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Finding the Fourth Proportional to 1,581.23, 2,368.20 and 886.79

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Solution

The fourth proportional to 1,581.23, 2,368.20 and 886.79 is: 1,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.23 : 2,368.20 = 886.79 : x
  2. Step 2: Convert to fraction form
    1,581.23/2,368.20 = 886.79/x
  3. Step 3: Cross multiply
    1,581.23x = 2,368.20 × 886.79
  4. Step 4: Simplify right side
    1,581.23x = 2,100,096.08
  5. Step 5: Solve for x
    x = 2,100,096.08/1,581.23
  6. Step 6: Final answer
    x = 1,328.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.