Home / 1,376.66-2,062.56-913.34

Finding the Fourth Proportional to 1,376.66, 2,062.56 and 913.34

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Solution

The fourth proportional to 1,376.66, 2,062.56 and 913.34 is: 1,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.66 : 2,062.56 = 913.34 : x
  2. Step 2: Convert to fraction form
    1,376.66/2,062.56 = 913.34/x
  3. Step 3: Cross multiply
    1,376.66x = 2,062.56 × 913.34
  4. Step 4: Simplify right side
    1,376.66x = 1,883,818.55
  5. Step 5: Solve for x
    x = 1,883,818.55/1,376.66
  6. Step 6: Final answer
    x = 1,368.40

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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.