Home / 1,560.30-2,337.48-1,328.64

Finding the Fourth Proportional to 1,560.30, 2,337.48 and 1,328.64

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Solution

The fourth proportional to 1,560.30, 2,337.48 and 1,328.64 is: 1,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.30 : 2,337.48 = 1,328.64 : x
  2. Step 2: Convert to fraction form
    1,560.30/2,337.48 = 1,328.64/x
  3. Step 3: Cross multiply
    1,560.30x = 2,337.48 × 1,328.64
  4. Step 4: Simplify right side
    1,560.30x = 3,105,669.43
  5. Step 5: Solve for x
    x = 3,105,669.43/1,560.30
  6. Step 6: Final answer
    x = 1,990.43

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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.