Home / 2,403.45-3,315.51-1,563.12

Finding the Fourth Proportional to 2,403.45, 3,315.51 and 1,563.12

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Solution

The fourth proportional to 2,403.45, 3,315.51 and 1,563.12 is: 2,156.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.45 : 3,315.51 = 1,563.12 : x
  2. Step 2: Convert to fraction form
    2,403.45/3,315.51 = 1,563.12/x
  3. Step 3: Cross multiply
    2,403.45x = 3,315.51 × 1,563.12
  4. Step 4: Simplify right side
    2,403.45x = 5,182,539.99
  5. Step 5: Solve for x
    x = 5,182,539.99/2,403.45
  6. Step 6: Final answer
    x = 2,156.29

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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.