Home / 1,564.63-2,157.51-1,318.66

Finding the Fourth Proportional to 1,564.63, 2,157.51 and 1,318.66

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Solution

The fourth proportional to 1,564.63, 2,157.51 and 1,318.66 is: 1,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.63 : 2,157.51 = 1,318.66 : x
  2. Step 2: Convert to fraction form
    1,564.63/2,157.51 = 1,318.66/x
  3. Step 3: Cross multiply
    1,564.63x = 2,157.51 × 1,318.66
  4. Step 4: Simplify right side
    1,564.63x = 2,845,022.14
  5. Step 5: Solve for x
    x = 2,845,022.14/1,564.63
  6. Step 6: Final answer
    x = 1,818.34

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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.