Home / 1,822.85-2,515.68-1,490.34

Finding the Fourth Proportional to 1,822.85, 2,515.68 and 1,490.34

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Solution

The fourth proportional to 1,822.85, 2,515.68 and 1,490.34 is: 2,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.85 : 2,515.68 = 1,490.34 : x
  2. Step 2: Convert to fraction form
    1,822.85/2,515.68 = 1,490.34/x
  3. Step 3: Cross multiply
    1,822.85x = 2,515.68 × 1,490.34
  4. Step 4: Simplify right side
    1,822.85x = 3,749,218.53
  5. Step 5: Solve for x
    x = 3,749,218.53/1,822.85
  6. Step 6: Final answer
    x = 2,056.80

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1.5x scale

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.