Home / 1,562.99-2,155.65-1,003.46

Finding the Fourth Proportional to 1,562.99, 2,155.65 and 1,003.46

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Solution

The fourth proportional to 1,562.99, 2,155.65 and 1,003.46 is: 1,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.99 : 2,155.65 = 1,003.46 : x
  2. Step 2: Convert to fraction form
    1,562.99/2,155.65 = 1,003.46/x
  3. Step 3: Cross multiply
    1,562.99x = 2,155.65 × 1,003.46
  4. Step 4: Simplify right side
    1,562.99x = 2,163,108.55
  5. Step 5: Solve for x
    x = 2,163,108.55/1,562.99
  6. Step 6: Final answer
    x = 1,383.96

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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.