Home / 1,715.22-2,368.40-1,157.54

Finding the Fourth Proportional to 1,715.22, 2,368.40 and 1,157.54

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Solution

The fourth proportional to 1,715.22, 2,368.40 and 1,157.54 is: 1,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.22 : 2,368.40 = 1,157.54 : x
  2. Step 2: Convert to fraction form
    1,715.22/2,368.40 = 1,157.54/x
  3. Step 3: Cross multiply
    1,715.22x = 2,368.40 × 1,157.54
  4. Step 4: Simplify right side
    1,715.22x = 2,741,500.11
  5. Step 5: Solve for x
    x = 2,741,500.11/1,715.22
  6. Step 6: Final answer
    x = 1,598.34

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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.